{"product":{"catalog_id":"239f8ead-8f79-44e9-bf56-a5e204601489","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"9cf56a09-3170-4270-81af-ec34806d8803","title":"Mesh-Back T-Shirt","description":"The Mesh-Back T-Shirt by i.FiV5, an exclusive Simons house brand designed in Canada, is a short-sleeve athletic crewneck top made from silky, breathable stretch microfibre. It includes a micro-perforated back panel for ventilation, Polygiene technology to eliminate odour and prevent bacteria growth, anti-chafing heat-sealed edging, and reflective detailing. Suitable for activewear and gym use, it wicks moisture and dries quickly.","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=0","brand":"I.FIV5","condition":"new","product_category":"men sports clothes > t shirts tank tops > t shirts","material":"Mesh: 92% polyester made from recycled plastic bottles, 8% spandex","age_group":"adult","image_url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","additional_image_urls":["https://imagescdn.simons.ca/images/11318/228475/1/A2_2.jpg","https://imagescdn.simons.ca/images/11318/228475/1/A3_2.jpg"],"images":[{"id":"img-1784702885947-0","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt product image (primary)","position":1,"attributes":{"other":{"summary":"Studio-framed product shot showing a model against a plain light gray background with even, soft lighting and mild shadowing; model poses with hands on hips.","observations":[{"key":"Background","kind":"feature","value":"Uniform light gray to off-white studio background with no props or visible set elements.","regions":[],"evidence_status":"direct"},{"key":"Model pose","kind":"feature","value":"Model is slightly leaning forward with hands on hips, visible from mid-thigh to slightly above the head; head is tilted to the model's left.","regions":[{"x":0.02,"y":0,"width":0.96,"height":0.98,"confidence":"medium"}],"evidence_status":"direct"},{"key":"Lighting and shadows","kind":"feature","value":"Soft, diffuse lighting from front-left producing gentle highlights on the shirt fabric and subtle shadows under the arms and along draped folds.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"dark charcoal","part":"main body","regions":[{"x":0.2,"y":0.18,"width":0.6,"height":0.56,"confidence":"high"}],"subject":"product","description":"Solid dark charcoal to near-black appearance with a slight glossy sheen under studio lighting.","sampled_hex":"#211E23","estimated_hex":"#1F1F22"}],"product":{"summary":"Front view of a short-sleeve athletic crewneck t-shirt in a dark charcoal/near-black color; smooth, slightly shiny knit with visible shoulder seam detailing and relaxed drape across the torso.","observations":[{"key":"Silhouette","kind":"feature","value":"Short-sleeve crewneck t-shirt with a straight hem and a relaxed fit on the torso, worn by a model shown from mid-thigh to above the head.","regions":[{"x":0.12,"y":0.18,"width":0.76,"height":0.68,"confidence":"high"}],"evidence_status":"direct"},{"key":"Neckline","kind":"feature","value":"Round crew neckline with a narrow band of the same fabric, lying flat against the neck.","regions":[{"x":0.34,"y":0.06,"width":0.32,"height":0.12,"confidence":"high"}],"evidence_status":"direct"},{"key":"Shoulder seam","kind":"feature","value":"Visible seam detail running from the neckline outward over the shoulder toward the sleeve, creating a raglan-like panel effect on both shoulders.","regions":[{"x":0.1,"y":0.12,"width":0.36,"height":0.2,"confidence":"high"},{"x":0.54,"y":0.12,"width":0.36,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Sleeve construction","kind":"feature","value":"Short sleeves with a smooth finish and a slightly curved hem edge; sleeves are unadorned and cut to sit above the bicep.","regions":[{"x":0.06,"y":0.2,"width":0.22,"height":0.18,"confidence":"high"},{"x":0.72,"y":0.18,"width":0.22,"height":0.18,"confidence":"high"}],"evidence_status":"direct"},{"key":"Fabric appearance","kind":"feature","value":"Smooth, lightweight knit with a subtle sheen that reflects light; fabric shows natural horizontal drape and small wrinkle folds across the midsection.","regions":[{"x":0.2,"y":0.34,"width":0.6,"height":0.44,"confidence":"high"}],"evidence_status":"direct"},{"key":"No visible branding","kind":"feature","value":"No printed or embroidered logo, label, or text is visible on the front of the t-shirt in this image.","regions":[],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4615532","4615533","4615534","4615535","4615536","4615537","4615538","4615539"]},{"id":"img-1784702885947-1","url":"https://imagescdn.simons.ca/images/11318/228475/1/A2_2.jpg","alt_text":"Mesh-back T-shirt product image 2","position":2,"attributes":{"other":{"summary":"Studio close-up crop showing the upper torso and lower face of a model against a plain light background with soft, even lighting and minimal shadows.","observations":[{"key":"Shot composition","kind":"feature","value":"Tight crop framing the model from the lower face and neck down to the upper abdomen, left side of face and hair included; right arm partially visible at edge.","regions":[],"evidence_status":"direct"},{"key":"Background and lighting","kind":"feature","value":"Plain light neutral background with soft, even studio lighting producing gentle, consistent highlights and soft shadows on the fabric and skin.","regions":[],"evidence_status":"direct"},{"key":"Image quality","kind":"feature","value":"Sharp focus on fabric and seams with smooth tonal gradation; no visible text or labels in the frame.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"deep black","part":"body fabric","regions":[{"x":0.05,"y":0.24,"width":0.75,"height":0.6,"confidence":"high"}],"subject":"product","description":"Uniform dark black with a slight satin sheen on the smooth knit front panel.","sampled_hex":"#1B191E","estimated_hex":"#0F0F10"},{"name":"very dark charcoal","part":"side/back textured panel","regions":[{"x":0.78,"y":0.24,"width":0.2,"height":0.6,"confidence":"medium"}],"subject":"product","description":"Darker textured/mesh panel at the side that reads as a near-black with finer surface texture.","sampled_hex":"#0F0D12","estimated_hex":"#0A0A0A"}],"product":{"summary":"Close-up of the upper torso and neckline of a dark crew-neck T-shirt on a model showing smooth knit fabric, narrow neckline binding, visible shoulder seams, and a textured side/back panel partially visible at the right edge.","observations":[{"key":"Neckline","kind":"feature","value":"Low-profile round crew neck with a narrow stitched binding that lies flat against the throat.","regions":[{"x":0.2,"y":0.08,"width":0.6,"height":0.16,"confidence":"high"}],"evidence_status":"direct"},{"key":"Shoulder seam","kind":"feature","value":"Visible horizontal shoulder seams extending from the neckline toward each shoulder, topstitched and lying flat.","regions":[{"x":0.02,"y":0.1,"width":0.46,"height":0.14,"confidence":"high"},{"x":0.52,"y":0.1,"width":0.46,"height":0.14,"confidence":"high"}],"evidence_status":"direct"},{"key":"Body fabric","kind":"feature","value":"Smooth, tightly knit fabric with a subtle sheen and uniform surface, appearing slightly stretched across the chest.","regions":[{"x":0.05,"y":0.24,"width":0.75,"height":0.6,"confidence":"high"}],"evidence_status":"direct"},{"key":"Tension wrinkles","kind":"feature","value":"Shallow horizontal tension lines across the lower chest area where the fabric is pulled, creating gentle shadowed folds.","regions":[{"x":0.1,"y":0.56,"width":0.8,"height":0.18,"confidence":"high"}],"evidence_status":"direct"},{"key":"Side/back textured panel","kind":"feature","value":"A darker, textured panel is partially visible at the right edge of the torso, showing a finer mesh or different knit than the front body.","regions":[{"x":0.78,"y":0.24,"width":0.2,"height":0.6,"confidence":"medium"}],"evidence_status":"partial"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4615532","4615533","4615534","4615535","4615536","4615537","4615538","4615539"]},{"id":"img-1784702885947-2","url":"https://imagescdn.simons.ca/images/11318/228475/1/A3_2.jpg","alt_text":"Mesh-back T-shirt product image 3","position":3,"attributes":{"other":{"summary":"Studio rear-shot of a model wearing the t-shirt against a plain light background with even studio lighting and soft shadowing at the right; image is centered on the model from upper head to mid-thigh.","observations":[{"key":"Shot composition","kind":"feature","value":"Model photographed from behind, centered in frame, showing back of shirt down to upper thighs; head turned slightly to the right.","regions":[],"evidence_status":"direct"},{"key":"Background and lighting","kind":"feature","value":"Plain light neutral background with even studio lighting producing soft shadows along the model's right side and under the arms.","regions":[],"evidence_status":"direct"},{"key":"Visible prop","kind":"feature","value":"Dark athletic shorts worn by the model are visible below the shirt hem but are not described as part of the t-shirt product.","regions":[{"x":0.28,"y":0.76,"width":0.44,"height":0.2,"confidence":"high"}],"evidence_status":"direct"}]},"colors":[{"name":"dark charcoal","part":"mesh back panel","regions":[{"x":0.2,"y":0.18,"width":0.6,"height":0.58,"confidence":"high"}],"subject":"product","description":"Matte dark charcoal black with a subtle textured square-mesh appearance across the central back panel.","sampled_hex":"#1A191E","estimated_hex":"#1B1B1B"},{"name":"matte black","part":"shoulder and sleeve panels","regions":[{"x":0.14,"y":0.08,"width":0.72,"height":0.18,"confidence":"high"},{"x":0.14,"y":0.26,"width":0.23,"height":0.2,"confidence":"high"},{"x":0.67,"y":0.26,"width":0.19,"height":0.2,"confidence":"high"}],"subject":"product","description":"Smooth matte black fabric on the upper yoke and sleeves, slightly less textured than the central mesh.","sampled_hex":"#141214","estimated_hex":"#151515"},{"name":"light grey reflective","part":"reflective dot detail","regions":[{"x":0.47,"y":0.2,"width":0.06,"height":0.03,"confidence":"high"}],"subject":"product","description":"Small light grey reflective squares forming a short row on the upper back, higher contrast against the dark fabric.","estimated_hex":"#BDBDBD"}],"product":{"summary":"Rear view of a dark short-sleeve athletic t-shirt with a textured mesh back panel, smooth shoulder and sleeve panels, a narrow crew neckline, and a small reflective four-dot detail centered on the upper back.","observations":[{"key":"Mesh back panel","kind":"feature","value":"Large central back panel with a fine square-mesh texture covering most of the shirt back from upper shoulder blade area down to the hem; appears slightly matte and textured compared with smooth shoulder panels.","regions":[{"x":0.2,"y":0.18,"width":0.6,"height":0.58,"confidence":"high"}],"evidence_status":"direct"},{"key":"Shoulder and sleeve panels","kind":"feature","value":"Smooth, solid fabric panels form the upper yoke across the shoulders and continue into the short sleeves; finish appears smoother and slightly less textured than the central mesh panel.","regions":[{"x":0.14,"y":0.08,"width":0.72,"height":0.18,"confidence":"high"},{"x":0.14,"y":0.26,"width":0.23,"height":0.2,"confidence":"high"},{"x":0.67,"y":0.26,"width":0.19,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Crew neckline trim","kind":"feature","value":"Narrow ribbed crew-neck trim visible at the top center of the back neckline, matching the shirt color and forming a clean bound edge.","regions":[{"x":0.38,"y":0.06,"width":0.24,"height":0.05,"confidence":"high"}],"evidence_status":"direct"},{"key":"Reflective dot detail","kind":"feature","value":"A short row of small square reflective marks (four small squares) centered on the upper portion of the mesh panel just below the yoke.","regions":[{"x":0.47,"y":0.2,"width":0.06,"height":0.03,"confidence":"high"}],"evidence_status":"direct"},{"key":"Hem and drape","kind":"feature","value":"Lower hem falls straight with minor horizontal stretch and slight gathering at the right side where the model tucks a hand, showing soft drape and lightweight fabric.","regions":[{"x":0.3,"y":0.67,"width":0.5,"height":0.22,"confidence":"medium"}],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4615532","4615533","4615534","4615535","4615536","4615537","4615538","4615539"]}],"price":"59 CAD","sale_price":"19.99 CAD","availability":"in_stock","listing_has_variations":"true","variants":[{"sku":"4615532","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=1","image":{"id":"img-variant-4615532","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Black - SMALL variant image","position":1,"variant_ids":["4615532"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Black - Small","option1":"Black","option2":"SMALL","image_url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615532","availability":"in_stock"},{"sku":"4615533","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=1","image":{"id":"img-variant-4615533","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Black - MEDIUM variant image","position":2,"variant_ids":["4615533"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Black - Medium","option1":"Black","option2":"MEDIUM","image_url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615533","availability":"in_stock"},{"sku":"4615534","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=1","image":{"id":"img-variant-4615534","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Black - LARGE variant image","position":3,"variant_ids":["4615534"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Black - Large","option1":"Black","option2":"LARGE","image_url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615534","availability":"in_stock"},{"sku":"4615536","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=4","image":{"id":"img-variant-4615536","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Grey - SMALL variant image","position":4,"variant_ids":["4615536"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Grey - Small","option1":"Grey","option2":"SMALL","image_url":"https://imagescdn.simons.ca/images/11318/228475/4/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615536","availability":"in_stock"},{"sku":"4615537","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=4","image":{"id":"img-variant-4615537","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Grey - MEDIUM variant image","position":5,"variant_ids":["4615537"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Grey - Medium","option1":"Grey","option2":"MEDIUM","image_url":"https://imagescdn.simons.ca/images/11318/228475/4/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615537","availability":"in_stock"},{"sku":"4615538","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=4","image":{"id":"img-variant-4615538","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Grey - LARGE variant image","position":6,"variant_ids":["4615538"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Grey - Large","option1":"Grey","option2":"LARGE","image_url":"https://imagescdn.simons.ca/images/11318/228475/4/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615538","availability":"in_stock"},{"sku":"4615539","url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=4","image":{"id":"img-variant-4615539","url":"https://imagescdn.simons.ca/images/11318/228475/1/A1_2.jpg","alt_text":"Mesh-back T-shirt - Grey - X-LARGE variant image","position":7,"variant_ids":["4615539"]},"price":{"value":59,"currency":"CAD"},"title":"Mesh-Back T-Shirt - Grey - X-Large","option1":"Grey","option2":"X-LARGE","image_url":"https://imagescdn.simons.ca/images/11318/228475/4/A1_2.jpg","sale_price":{"value":19.99,"currency":"CAD"},"variant_id":"4615539","availability":"in_stock"}],"item_group_title":"Mesh-Back T-Shirt","size_system":"US","gender":"male","is_digital":"false","q_and_a":[{"a":"Polygiene is a permanent treatment that lasts the lifetime of the garment under normal use and washing; it does not require reactivation (no heat needed) and does not wash out over time. The silver-salt additive is bonded into the fabric fibers, so it remains effective for the shirt's lifespan.","q":"How long does the Polygiene odor control last? Does it require reactivation (e.g., heat) or does it wash out over time?"}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475?colourId=0","reddit_insights":{"match":{"notes":"Only one thread mentions the brand 'i.fiv5' in passing, not the specific 'Mesh-Back T-Shirt' product.","confidence":0.3,"matched_terms":["i.fiv5"]},"status":"ok","coverage":{"subreddits":["xxfitness"],"threads_used":1},"evidence":{"items":[{"url":"https://www.reddit.com/r/xxfitness/comments/1dawy0l/weekly_thread_shopping_and_style_saturdaysunday/l7ta58c/","type":"comment","title":"i.fiv5 brand mentioned as great activewear","author":"spookylibrarian","ref_id":"r_e_6","thread":{"url":"https://www.reddit.com/r/xxfitness/comments/1dawy0l/weekly_thread_shopping_and_style_saturdaysunday/","title":"weekly thread shopping and style saturdaysunday","subreddit":"xxfitness"},"excerpt":"Simons. Their house brand activewear (i.fiv5) is great and often on deep markdown","subreddit":"xxfitness"}]},"generated_at":"2025-03-28T00:00:00Z","conversation_summary":{"gotchas":[],"one_liner":"Reddit has limited discussion on the I.FIV5 Mesh-Back T-Shirt, with only a brief mention of the i.fiv5 brand as great activewear.","sentiment":{"label":"positive","score":0.8,"explanation":"One user recommends i.fiv5 activewear as great and often discounted."},"use_cases":[{"evidence":["r_e_6"],"use_case":"Activewear / gym wear"}],"top_themes":[{"theme":"Brand quality","stance":"positive","evidence":["r_e_6"]}],"comparisons":[]}},"deep_research":{"dimensions":{"wash_care_longevity":{"title":"Care tips for durability and performance","entries":{"liquid_detergent_over_powder":"Mineral residues from powdered detergents can lodge in the tightly woven recycled polyester, degrading moisture-wicking and potentially irritating skin; a liquid detergent — ideally a sport-specific enzyme formula — dissolves completely and rinses clean, maintaining the fabric’s silky hand and breathability.","polygiene_assisted_wash_cycle_reduction":"Since the Polygiene silver-salt treatment prevents sweat-borne bacteria from creating odors, the shirt remains fresh after use with just air-drying; washing only when truly needed reduces the cumulative fiber stress from machine agitation, extending the lifespan of the microfibre, flatlock seams, and the heat-sealed edging.","low_heat_or_air_dry_to_avoid_synthetic_damage":"Tumble dryer heat accelerates spandex degradation, promotes pilling, and builds static charge in the polyester; using the lowest heat setting or line drying preserves the shirt’s elasticity, smooth surface, and overall structural integrity for the long term.","cold_wash_30_c_preserves_the_8_spandex_stretch":"The shirt’s fit and recovery depend on intact elastane polymer chains; exposed to water above 40°C, those chains permanently fragment, leading to irreversible bagging at stress points — a cold-water wash set to 30°C or below guards the stretch that makes the garment hold its shape workout after workout.","inside_out_washing_targets_bacteria_at_the_source":"Turning the shirt inside out before washing orientates the inner face — where body soils and odor-causing bacteria concentrate — toward the water and detergent, amplifying the cleaning power and enabling the Polygiene treatment to maintain a fresher garment through its service life.","fabric_softener_a_double_blow_to_performance_and_freshness":"Fabric softener deposits a hydrophilic film over the recycled polyester fibers, blocking the capillary wicking channels and reversing the shirt’s moisture-shedding direction, while also providing nutrients for odor-causing bacteria that the Polygiene treatment would otherwise suppress — cutting softener completely protects both the dry feel and the multi-wear freshness."},"entry_quotes":{"liquid_detergent_over_powder":[{"url":"https://textiletuts.com/how-to-wash-synthetic-fabrics/","quote":"Use liquid detergent only — never powder. Powder detergents can leave mineral residue embedded in the tight fiber structure of synthetics, reducing moisture-wicking performance and causing skin irritation."}],"polygiene_assisted_wash_cycle_reduction":[{"url":"https://polygiene.com/care/","quote":"Only wash it when absolutely necessary. The fewer times a product is washed, the longer it will last, and the lower its environmental impact will be. To keep the item fresh just hang it up to air dry."}],"low_heat_or_air_dry_to_avoid_synthetic_damage":[{"url":"https://textiletuts.com/how-to-wash-synthetic-fabrics/","quote":"High heat causes pilling in polyester and acrylic, degrades elastic in spandex, and creates static charge in all synthetic fibers."}],"cold_wash_30_c_preserves_the_8_spandex_stretch":[{"url":"https://textiletuts.com/how-to-wash-activewear/","quote":"elastane fibers degrade above 40°C causing permanent stretch loss"}],"inside_out_washing_targets_bacteria_at_the_source":[{"url":"https://www.nike.com/a/take-care-workout-clothes","quote":"Give your washing machine access to the most bacteria-ridden surfaces of your clothing by turning your bottoms, shirts, and undergarments inside out before you put them in the wash. That’ll help maximize your washing machine’s effectiveness, since odor-causing bacteria will build up the most on the inside of your clothes."}],"fabric_softener_a_double_blow_to_performance_and_freshness":[{"url":"https://textiletuts.com/how-to-wash-activewear/","quote":"Fabric softener destroys both mechanisms. The cationic surfactants in fabric softener deposit a hydrophilic (water-attracting) film over the hydrophobic microfiber channels, physically blocking the capillary structure and reversing the fabric’s wicking direction."},{"url":"https://polygiene.com/care/","quote":"We do not recommend using fabric softeners. This is because they provide an excellent source of nutrients for the bacteria that cause the stink."}]},"entry_sources":{"liquid_detergent_over_powder":["https://textiletuts.com/how-to-wash-synthetic-fabrics/"],"polygiene_assisted_wash_cycle_reduction":["https://polygiene.com/care/"],"low_heat_or_air_dry_to_avoid_synthetic_damage":["https://textiletuts.com/how-to-wash-synthetic-fabrics/"],"cold_wash_30_c_preserves_the_8_spandex_stretch":["https://textiletuts.com/how-to-wash-activewear/"],"inside_out_washing_targets_bacteria_at_the_source":["https://www.nike.com/a/take-care-workout-clothes"],"fabric_softener_a_double_blow_to_performance_and_freshness":["https://textiletuts.com/how-to-wash-activewear/","https://polygiene.com/care/"]}},"mesh_back_ventilation_cooling":{"title":"How micro-perforated backs keep you cool","entries":{"upper_back_heat_escape_placement":"Research on athletic T-shirts indicates that mesh or perforated panels on the upper back exploit the natural rise of warm air to release body heat efficiently; this shirt's micro-perforated back panel is positioned in that primary hot zone, giving it an edge over designs that only vent the underarms or sides when it comes to core cooling during vertical-torso activities.","the_pumping_effect_with_arm_swing":"The back ventilation becomes semi-active during running or cycling because the arm swing creates a 'pumping effect' that forces air through the perforations, effectively turning the shirt into a dynamic cooling system that works harder as your pace increases.","lightweight_alternative_to_mesh_inserts":"Instead of adding a separate heavyweight mesh layer, the micro-perforations are integrated into the fabric itself, which keeps the shirt lighter and less bulky than tees with traditional mesh panel inserts—a design choice that reduces swing weight and improves comfort during prolonged exercise.","micro_perforations_as_active_air_circulators":"Beyond the wicking base fabric, the micro-perforations actively promote air movement across the skin, reducing the heat buildup that can still occur under a solid-back wicking shirt—a principle confirmed in sportswear ventilation studies where perforated fabrics measurably cut heat retention.","signature_back_ventilation_across_i_fiv5_line":"The micro-perforated back panel appears across I.FIV5 tops—from this tee to the brand's performance tank—confirming that targeted upper-back ventilation is a core design principle rather than a model-specific gimmick, which means the cooling performance is intentional and consistent across the line."},"entry_quotes":{"upper_back_heat_escape_placement":[{"url":"https://ira.lib.polyu.edu.hk/bitstream/10397/102242/1/Ho_Development_Trial_Athletic.pdf","quote":"mesh fabric panels in the shoulder, chest, and upper back areas for the release of body heat."},{"url":"https://ira.lib.polyu.edu.hk/bitstream/10397/102242/1/Ho_Development_Trial_Athletic.pdf","quote":"Because of the upward movement of warm air, the mesh panels should be placed in the upper part of the garment."}],"the_pumping_effect_with_arm_swing":[{"url":"https://ira.lib.polyu.edu.hk/bitstream/10397/102242/1/Ho_Development_Trial_Athletic.pdf","quote":"During body motion, the air space between the garment and the skin surface also moves, and if the garment has been designed with any vented panels or is made of a porous fabric, heat and moisture on the skin surface can be effectively released because the arms or legs \"pump\" air through openings or fabric pores."}],"lightweight_alternative_to_mesh_inserts":[{"url":"https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/","quote":"By replacing heavy mesh inserts with laser-cut patterns, garments remain lightweight without compromising performance or durability."}],"micro_perforations_as_active_air_circulators":[{"url":"https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/","quote":"Micro-perforations allow air to circulate around the body, reducing heat buildup during workouts or competitions."}],"signature_back_ventilation_across_i_fiv5_line":[{"url":"https://modesens.com/product/ifiv5-microperforatedback-tank-gray-132533341/","quote":"Micro-perforated back for maximum ventilation"}]},"entry_sources":{"upper_back_heat_escape_placement":["https://ira.lib.polyu.edu.hk/bitstream/10397/102242/1/Ho_Development_Trial_Athletic.pdf"],"the_pumping_effect_with_arm_swing":["https://ira.lib.polyu.edu.hk/bitstream/10397/102242/1/Ho_Development_Trial_Athletic.pdf"],"lightweight_alternative_to_mesh_inserts":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"],"micro_perforations_as_active_air_circulators":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"],"signature_back_ventilation_across_i_fiv5_line":["https://modesens.com/product/ifiv5-microperforatedback-tank-gray-132533341/"]}},"recycled_polyester_performance":{"title":"How the recycled polyester fabric performs","entries":{"filament_tenacity":"Mechanically recycled polyester filament typically measures 4.0–5.5 cN/dtex in tenacity, a 5–15% reduction from virgin’s 5.0–6.5 cN/dtex, but the 8% spandex blend and jersey knit absorb stress through stretch rather than relying on pure fiber strength, so the shirt won’t tear under gym use where abrasion and flex fatigue are the real threats.","abrasion_resistance":"Laboratory comparison of R-PET and virgin-PET knits found that recycled polyester can deliver equal or better abrasion resistance, so the mesh back — which sees frequent friction from bench surfaces and backpack straps — won’t degrade faster than a conventional polyester shirt, despite the recycled fiber’s modestly lower tenacity.","moisture_regain_parity":"Recycled polyester has the same ~0.4% moisture regain as virgin polyester because both are PET polymers that repel water at the molecular level; the fabric’s ability to wick sweat across its surface and dry quickly is therefore determined by the knit structure and surface area, not the recycled feedstock — meaning the shirt’s moisture management performance will be indistinguishable from a virgin-polyester equivalent."},"entry_quotes":{"filament_tenacity":[{"url":"https://natuclothes.com/materials/repreve-recycled-polyester/","quote":"| Tenacity, filament (cN/dtex) | 4.0-5.5 | 5.0-6.5 | Akyildiz et al. 2024 |"}],"abrasion_resistance":[{"url":"https://irispublishers.com/jtsft/pdf/JTSFT.MS.ID.000543.pdf","quote":"R-PET fabric showed very positive results in the tensile strength, abrasion resistance"}],"moisture_regain_parity":[{"url":"https://www.xiaorangroup.com/news/does-recycled-polyester-yarn-have-the-same-moisturewicking-or-quickdrying.html","quote":"Its fundamental hydrophobic nature is unchanged."},{"url":"https://natuclothes.com/materials/repreve-recycled-polyester/","quote":"| Moisture regain (%) | ~0.4 | ~0.4 | ASTM D1909 (commercial regain tables) |"}]},"entry_sources":{"filament_tenacity":["https://natuclothes.com/materials/repreve-recycled-polyester/"],"abrasion_resistance":["https://irispublishers.com/jtsft/pdf/JTSFT.MS.ID.000543.pdf"],"moisture_regain_parity":["https://www.xiaorangroup.com/news/does-recycled-polyester-yarn-have-the-same-moisturewicking-or-quickdrying.html","https://natuclothes.com/materials/repreve-recycled-polyester/"]}},"value_comparison_mesh_back_tee":{"title":"How this tee stacks up against competitors","entries":{"micro_perforated_back_panel":"The I.FIV5 tee's micro-perforated back panel directly addresses the breathability shortcomings that OutdoorGearLab flagged in the similarly priced Under Armour Tech 2.0, which earned an 'average' breathability score and lacked any laser-cut or panel enhancements—so the I.FIV5 is better equipped for high-sweat indoor workouts or summer training.","polygiene_vs_no_odor_tech_rivals":"The I.FIV5 tee includes Polygiene odor control, while rival budget shirts like the Nike Dri-FIT Legend and Adidas Aeroready offer no anti-odor technology, according to a head-to-head comparison by Need for This, giving the I.FIV5 a clear hygiene advantage for multi-hour wear or back-to-back workouts.","half_price_entry_to_polygiene_lineup":"At $19.99 CAD on sale, the Mesh-Back T-Shirt costs roughly half of I.FIV5's standard $39 CAD for their other Polygiene-equipped tees (like the micro-perforated high-intensity tee), making it the lowest-priced gateway into the brand's odor-control ecosystem.","heat_sealed_edging_vs_standard_seams":"The heat-sealed edging on the I.FIV5 tee eliminates the stitched seams that caused mild irritation during hour-plus runs in OutdoorGearLab's testing of the Under Armour Tech 2.0, making this $19.99 CAD shirt a smarter choice for sensitive skin or long training sessions."},"entry_quotes":{"micro_perforated_back_panel":[{"url":"https://www.outdoorgearlab.com/reviews/clothing-mens/running-shirt-men/under-armour-mens-tech-2-0","quote":"Breathability is average, with no stretch panels, laser cuts, or weight advantage to move air."}],"polygiene_vs_no_odor_tech_rivals":[{"url":"https://needforthis.com/clothing/under-armour-tech-2-tshirt-review/","quote":"Anti-Odor Tech | Yes | No | No | No"}],"half_price_entry_to_polygiene_lineup":[{"url":"https://modesens.com/product/ifiv5-micro-perforated-high-intensity-t-shirt-black-68715912/","quote":"PolygieneTM technology that eliminates odour and prevents bacteria growth"},{"url":"https://modesens.com/product/ifiv5-micro-perforated-high-intensity-t-shirt-black-68715912/","quote":"$39"}],"heat_sealed_edging_vs_standard_seams":[{"url":"https://www.outdoorgearlab.com/reviews/clothing-mens/running-shirt-men/under-armour-mens-tech-2-0","quote":"We noticed mild irritation on runs lasting over an hour, where flatlock or bonded seams would have been smoother."}]},"entry_sources":{"micro_perforated_back_panel":["https://www.outdoorgearlab.com/reviews/clothing-mens/running-shirt-men/under-armour-mens-tech-2-0"],"polygiene_vs_no_odor_tech_rivals":["https://needforthis.com/clothing/under-armour-tech-2-tshirt-review/"],"half_price_entry_to_polygiene_lineup":["https://modesens.com/product/ifiv5-micro-perforated-high-intensity-t-shirt-black-68715912/"],"heat_sealed_edging_vs_standard_seams":["https://www.outdoorgearlab.com/reviews/clothing-mens/running-shirt-men/under-armour-mens-tech-2-0"]}},"anti_chafing_heat_sealed_edging":{"title":"How heat-sealed edging prevents chafing","entries":{"flush_edge_profile":"A standard overlock hem builds a 3.0–5.0mm ridge of thread and folded fabric that grinds against skin with every rep, while the heat-sealed edging bonds the edge into a sub-0.5mm profile — effectively removing the elevated surface that causes friction burns along side seams and sleeve openings during long runs or high-volume training.","friction_free_activewear_construction":"Chafing arises from the combination of repetitive movement, sweat-soaked fabric, and raised seam edges dragging across skin; by replacing stitched edges with a flat bonded finish, the shirt directly removes one of those friction triggers, which is why garment-focused anti-chafe guides call out seamless edging as a foundational intervention for comfort during prolonged exercise.","premium_athletic_build_at_an_accessible_price":"Bonded-edge construction is standard in top-tier athletic lines from Lululemon to Gymshark, where it signals a seamless, high-end hand feel; the same treatment on this I.FIV5 tee — obtainable for as little as $19.99 CAD on sale — brings a luxury‑grade anti-chafe feature into a budget‑friendly training shirt, evidence that next‑to‑skin comfort was an engineering priority rather than an afterthought."},"entry_quotes":{"flush_edge_profile":[{"url":"https://gymhur.com/heat-bonding-ultrasonic-welding-activewear/","quote":"A standard 4-thread overlock stitch creates a raised ridge of 3.0mm – 5.0mm. A heat-bonded seam is flush with the fabric surface (<0.5mm)."},{"url":"https://gymhur.com/heat-bonding-ultrasonic-welding-activewear/","quote":"Skin Friction (Anti-Chafe): Needle thread creates friction points against the skin. Bonded seams eliminate the thread entirely, creating a flat internal profile essential for compression gear."}],"friction_free_activewear_construction":[{"url":"https://diguanapparel.com/blogs/insights/anti-chafe-running-t-shirts-oem-guide","quote":"According to the Cleveland Clinic, friction is the root cause of chafing, while moisture can make it worse. Its guidance also notes that clothing fit, rough materials, tags and seams can contribute to irritation."},{"url":"https://diguanapparel.com/blogs/insights/anti-chafe-running-t-shirts-oem-guide","quote":"a running shirt should reduce unnecessary rubbing, manage moisture and avoid construction details that become abrasive during movement."}],"premium_athletic_build_at_an_accessible_price":[{"url":"https://luckpanther.com/seamless-bonding-activewear-manufacturing-a-complete-guide-for-brands/","quote":"Leading brands like Lululemon, Alo Yoga, Nike Pro, and Gymshark use bonded seams for their premium collections."}]},"entry_sources":{"flush_edge_profile":["https://gymhur.com/heat-bonding-ultrasonic-welding-activewear/"],"friction_free_activewear_construction":["https://diguanapparel.com/blogs/insights/anti-chafe-running-t-shirts-oem-guide"],"premium_athletic_build_at_an_accessible_price":["https://luckpanther.com/seamless-bonding-activewear-manufacturing-a-complete-guide-for-brands/"]}},"polygiene_odor_control_efficacy":{"title":"How effectively Polygiene prevents workout odors","entries":{"gym_bag_stink_challenge":"A La Sportiva Polygiene-treated t-shirt worn for 20 hours over two weeks of running, mountain biking, and weightlifting and stored in a gym bag each time never developed odor, indicating the treatment actively prevents bacterial growth even in unventilated storage — a practical edge for gym-goers who pack their gear and go.","airing_vs_damp_crumple_for_multi_day_wear":"Advnture.com's 4-day sweat trial on a Montane Polygiene-treated top found it stayed fresh enough to skip laundry when aired between sessions, but leaving it damp and crumpled in a pack for multiple runs accelerated odor build-up — so the shirt's multi-day performance is maximized by letting it dry fully between uses.","bicycling_s_7_day_odour_neutral_jersey_test":"A Polygiene-treated cycling jersey worn for a week of daily hard rides, indoor trainer sessions, and curry dinners stayed odour-neutral in Bicycling's 2019 test, showing the treatment can handle both intense exercise and pungent food aromas without absorbing stink, making the shirt viable for multi-day travel or back-to-back training.","gearjunkie_s_3_week_backcountry_torture_test":"GearJunkie's tester wore a Polygiene-treated Patagonia R1 Hoody for three weeks straight, including a full week in the Utah backcountry without a shower, and reported it still didn't smell — a stress-test that confirms the silver-chloride treatment can withstand extended high-exertion use in remote conditions where laundry isn't an option."},"entry_quotes":{"gym_bag_stink_challenge":[{"url":"https://gearjunkie.com/apparel/gym-bag-stink-test-poligiene-treated-t-shirt","quote":"The shirt never developed an odor. I was impressed."}],"airing_vs_damp_crumple_for_multi_day_wear":[{"url":"https://www.inkl.com/news/we-put-anti-pong-polygiene-fabric-tech-to-the-test-in-the-field-but-did-it-actually-work","quote":"By doing this, I found the top became much more smelly. The Polygiene didn’t cope well with being damp and left in my hydration pack."}],"bicycling_s_7_day_odour_neutral_jersey_test":[{"url":"https://www.bicycling.com/bikes-gear/a20047916/does-polygiene-work/","quote":"When I was sweating in this jersey, it did not smell. When dry, it did tend to take on some of the odors around it, but nothing compared to your standard Polyester."}],"gearjunkie_s_3_week_backcountry_torture_test":[{"url":"https://gearjunkie.com/apparel/patagonia-r1-hoody-review-polygiene","quote":"I’ve yet to wash the R1 Hoody after wearing it constantly for most of three weeks. After the absolutely thrashing it took in the backcountry it came out unscathed"}]},"entry_sources":{"gym_bag_stink_challenge":["https://gearjunkie.com/apparel/gym-bag-stink-test-poligiene-treated-t-shirt"],"airing_vs_damp_crumple_for_multi_day_wear":["https://www.inkl.com/news/we-put-anti-pong-polygiene-fabric-tech-to-the-test-in-the-field-but-did-it-actually-work"],"bicycling_s_7_day_odour_neutral_jersey_test":["https://www.bicycling.com/bikes-gear/a20047916/does-polygiene-work/"],"gearjunkie_s_3_week_backcountry_torture_test":["https://gearjunkie.com/apparel/patagonia-r1-hoody-review-polygiene"]}}}},"handle":"mesh-back-t-shirt-11318-228475","storefront_path":"/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475","storefront_url":"https://ai.simons.ca/en/men-sports-clothes/t-shirts-tank-tops/t-shirts/mesh-back-t-shirt--11318-228475"}}