{"product":{"catalog_id":"068d8c94-e7b1-4940-89de-e425a49e4d24","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"c61c4fab-bc73-41f1-9485-4bf38de02b26","title":"Racerback Sports Bra Medium To High-Impact Support","description":"This racerback sports bra offers medium to high-impact support for demanding workouts such as spinning, cross-training, cardio dance, and functional circuits. It features a round neckline, thin straps, and a breathable racerback design. 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Support","size_system":"US","gender":"female","is_digital":"false","review_count":13,"q_and_a":[{"a":"This bra uses generic XS to XL sizing, not standard bra band and cup sizes like 34B or 36C. It corresponds to S/M/L sizing based on overall bust and underbust measurements.","q":"What is the band and cup sizing for this bra? Does it correspond to standard bra sizes or is it generic S/M/L?"},{"a":"The bra is described as medium-to-high impact, suitable for demanding workouts like spinning and cross-training. However, there is no specific data on how support varies by cup size. For a D cup during high-impact running, this generic sizing may not provide enough support; we recommend checking customer reviews or considering a bra with specific cup sizes.","q":"How does the support level vary between cup sizes? For example, is it suitable for high-impact running for a D cup?"},{"a":"The straps are fixed length (not adjustable) and the bra already features a racerback design with thin straps that converge at the back. They cannot be converted to a different style as they are sewn in a Y-shape.","q":"Are the straps adjustable or fixed length? Can they be converted to a crossback style?"}],"reviews":[{"date":"February 10, 2025","tags":["Comfort"],"title":"Perfect fit","rating":5,"content":"Very comfortable and good support for smallish breasts.","reviewer_name":"lisette l."},{"date":"March 6, 2026","tags":["Sizing & Fit","Comfort"],"title":"Perfect fit","rating":5,"content":"Perfect fit","reviewer_name":"Linda B."},{"date":"August 30, 2025","tags":["Comfort"],"title":"Soutien","rating":5,"content":"Confortable et parfait pour porter sous une camisole à dos nageur, je recommande !","reviewer_name":"Mélanie T."},{"date":"April 2, 2026","tags":["Comfort"],"title":"Sports bra review","rating":4,"content":"Performs really well, good support and comfortable. Only negative is the “ floating” cup padding which tends to move around a bit. I wish this was attached inside.","reviewer_name":"Anita B."},{"date":"March 1, 2026","title":"Excellent Simple Sports Bra","rating":5,"content":"Excellent Simple Sports Bra","reviewer_name":"Adrienne A."},{"date":"September 23, 2025","tags":["Comfort"],"title":"Comfortable and supportive","rating":5,"content":"One of the more comfortable sports bras I've worn. The padding is easy to move around inside the bra and the chest band isn't restrictive.","reviewer_name":"Emily M."},{"date":"October 26, 2025","tags":["Comfort","Durability"],"title":"Good fit, great price","rating":4,"content":"This sports bra is comfortable and holds everything in place. It washes well too.","reviewer_name":"Christine R."},{"date":"February 22, 2026","tags":["Fabric","Comfort"],"title":"love","rating":5,"content":"soft comfy Super great support all day comfort","reviewer_name":"Michelle F."},{"date":"March 27, 2026","title":"Très bien!","rating":5,"content":"Je l’aime beaucoup, très confortable mais je ne le porterais pas pour de la course pas assez de soutien","reviewer_name":"Karine F."},{"date":"July 3, 2026","tags":["Comfort"],"title":"Can actually get it off after a tough workout","rating":5,"content":"This is the sports bra I’ve been waiting for! It’s so comfortable and holds everything in place. And the best part is that I can actually get it off after a tough workout!","reviewer_name":"Maryann T."},{"date":"March 29, 2025","tags":["Fabric","Comfort"],"title":"Comfy during Yoga","rating":5,"content":"Comfy during Yoga","reviewer_name":"GR P."},{"date":"March 16, 2026","tags":["Sizing & Fit","Fabric","Comfort","Durability"],"title":"Mesh?","rating":4,"content":"I thought the back of this bra was going to be mesh and breathable instead it has mesh lining. I’m extra wide around the rib cage and this bra didn’t dig into my ribs. Soft fabric. I bought both large and extra large to try on went with the large. Wear for tennis","reviewer_name":"Michelle D."},{"date":"February 21, 2026","tags":["Fabric","Comfort","Quality"],"title":"Very comfortable","rating":5,"content":"Soft material, comfortable and good support","reviewer_name":"Chelsea F."}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/women-sportswear/training/racerback-sports-bra-medium-to-high-impact-support--12893-220120?colourId=33","deep_research":{"dimensions":{"competitive_value":{"title":"Value compared to other bras with recycled tech","entries":{"6_recycled_plastic_bottles":"The REPREVE polyester microfiber is made from six recycled plastic bottles, a countable sustainability claim that rivals brands often reserve for higher-priced eco-conscious collections; at $39 CAD, the bra makes that environmental story accessible without the typical green premium.","repreve_polygiene_at_39_cad":"At $39 CAD, this bra bundles REPREVE recycled polyester and Polygiene odor control, two specialty technologies; for context, Buff's CoolNet UV+ Headband — a slim, single-layer accessory — retails for $15 USD using the same REPREVE/Polygiene combination, making the full-coverage, medium-to-high-support bra's price an aggressive value in the performance segment."},"entry_quotes":{"6_recycled_plastic_bottles":[{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"REPREVE® polyester microfibre made from 6 recycled plastic bottles"}],"repreve_polygiene_at_39_cad":[{"url":"https://www.christysports.com/product/buff-coolnet-uv-multi-headband-pixieline/499990541493.html","quote":"$15.00 $7.50 (53% off)"},{"url":"https://www.christysports.com/product/buff-coolnet-uv-multi-headband-pixieline/499990541493.html","quote":"engineered with REPREVE® performance microfiber, HeiQ cooling technology, Polygiene® odor control"},{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"REPREVE® polyester microfibre made from 6 recycled plastic bottles"},{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"Polygiene® technology that eliminates odour and prevents the growth of bacteria"}]},"entry_sources":{"6_recycled_plastic_bottles":["https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/"],"repreve_polygiene_at_39_cad":["https://www.christysports.com/product/buff-coolnet-uv-multi-headband-pixieline/499990541493.html","https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/"]}},"polygiene_odor_control":{"title":"Polygiene odor control in high-intensity workouts","entries":{"skin_microbiome_safety":"Unlike broad-spectrum antimicrobials, Polygiene specifically targets odor-causing bacteria on the fabric while avoiding interaction with the natural bacterial flora on the skin, as confirmed by skin irritation and microbiome testing — so wearing the bra back-to-back or for extended travel won’t disrupt the skin’s healthy balance.","week_long_wearable_freshness":"Real-world stink tests on Polygiene-treated synthetics prove the technology keeps garments odor-neutral far longer than untreated polyester: a Bicycling reviewer wore the same jersey for seven days of curry-fueled runs, climbing, and indoor cycling and a friend called it ‘not bad at all,’ while an Outside magazine tester wore a Polygiene shirt for eight days of running and daily wear, finding it only as smelly as a standard polyester top after a single long run — so this bra can handle consecutive sweaty workouts without immediate washing.","silver_chloride_agcl_antimicrobial_action":"The active agent in Polygiene is silver chloride, a naturally occurring salt that disrupts bacteria on the fabric through a three-pronged mechanism — binding to cell walls, interfering with DNA, and blocking enzyme energy production — originally developed for hospital contamination control in 2006 and now permanently bonded to the bra’s fibers at the factory, so it stays effective for the life of the garment without washing out.","bluesign_and_oeko_tex_eco_passport_certifications":"Polygiene holds Bluesign approval, ensuring low-impact manufacturing and consumer safety, plus Oeko-Tex Eco-Passport certification for responsible chemical management — meaning the odor control on this bra meets rigorous third-party standards rather than relying on harsh or untested biocides next to skin."},"entry_quotes":{"skin_microbiome_safety":[{"url":"https://www.roadtrailrun.com/2017/09/la-sportivapolygiene-odor-free-clothing.html","quote":"Polygiene only inhibits growth of bacteria on the fabric to reduce odors and not with naturally occurring skin bacteria."}],"week_long_wearable_freshness":[{"url":"https://www.outsideonline.com/outdoor-gear/clothing-apparel/do-anti-stink-clothing-treatments-really-work/","quote":"I’d say the shirt smelled as bad as a non-Polygiene shirt might after one long run."}],"silver_chloride_agcl_antimicrobial_action":[{"url":"https://polygiene.com/antibacterial-workout-clothes/","quote":"The technology works to prevent bacterial growth on three levels. 1. It binds to the cell wall to disrupt growth. 2. It interferes with bacterial DNA to prevent cellular replication. 3. It interrupts enzyme action to prevent energy production."},{"url":"https://www.bicycling.com/bikes-gear/a20047916/does-polygiene-work/","quote":"Originally developed in 2006 as a way to prevent contamination in hospitals, the treatment eventually crossed over to apparel."}],"bluesign_and_oeko_tex_eco_passport_certifications":[{"url":"https://polygiene.com/sports-and-outdoor/","quote":"We are accredited by bluesign®, an organization that promotes consumer safety, low-impact manufacturing and responsible resource use. We also received the Oeko-Tex Eco-Passport certification recognizing we utilize responsible manufacturing and supply chains."}]},"entry_sources":{"skin_microbiome_safety":["https://www.roadtrailrun.com/2017/09/la-sportivapolygiene-odor-free-clothing.html"],"week_long_wearable_freshness":["https://www.bicycling.com/bikes-gear/a20047916/does-polygiene-work/","https://www.outsideonline.com/outdoor-gear/clothing-apparel/do-anti-stink-clothing-treatments-really-work/"],"silver_chloride_agcl_antimicrobial_action":["https://polygiene.com/antibacterial-workout-clothes/","https://www.bicycling.com/bikes-gear/a20047916/does-polygiene-work/"],"bluesign_and_oeko_tex_eco_passport_certifications":["https://polygiene.com/sports-and-outdoor/"]}},"repreve_fabric_performance":{"title":"How REPREVE polyester performs in a high-sweat sports bra","entries":{"0_4_moisture_regain":"REPREVE polyester's ASTM D1909 moisture regain is 0.4%, the same as virgin PET, meaning the fiber doesn't absorb sweat internally — instead, moisture spreads along the fiber surface and evaporates, which is why the bra stays dry during high-sweat spinning and cross-training even without a distinct wicking treatment.","42_lower_carbon_unifi_2023_lca":"Unifi's peer-reviewed 2023 lifecycle assessment shows REPREVE filament yarn yields 42% fewer greenhouse gas emissions, 67% less freshwater use, and 66% less fossil fuel depletion compared to virgin polyester — for someone who values sustainability as a performance metric, this bra carries roughly half the carbon footprint of an equivalent virgin-poly sports bra before it's ever worn.","repreve_fiberprint_traceability":"Every genuine REPREVE strand embeds Unifi's FiberPrint tracer, a proprietary additive that lets independent labs verify recycled content in the finished fabric, so the claim of six recycled bottles per bra is not just a marketing number but a fully auditable chain-of-custody assurance."},"entry_quotes":{"0_4_moisture_regain":[{"url":"https://natuclothes.com/materials/repreve-recycled-polyester/","quote":"The moisture regain figure — 0.4% per ASTM D1909 — is identical for REPREVE and virgin PET because regain is governed by the polymer’s polar-group density, not by feedstock."}],"42_lower_carbon_unifi_2023_lca":[{"url":"https://natuclothes.com/materials/repreve-recycled-polyester/","quote":"Unifi’s 2023 peer-reviewed Life Cycle Assessment reports 42% lower greenhouse gas emissions for REPREVE filament yarn versus virgin filament, alongside 67% lower freshwater consumption and 66% lower fossil fuel depletion."}],"repreve_fiberprint_traceability":[{"url":"https://natuclothes.com/materials/repreve-recycled-polyester/","quote":"Every strand carries Unifi’s FiberPrint tracer — a proprietary additive blended at the resin stage that enables independent laboratories to verify REPREVE content in finished fabric."}]},"entry_sources":{"0_4_moisture_regain":["https://natuclothes.com/materials/repreve-recycled-polyester/"],"42_lower_carbon_unifi_2023_lca":["https://natuclothes.com/materials/repreve-recycled-polyester/"],"repreve_fiberprint_traceability":["https://natuclothes.com/materials/repreve-recycled-polyester/"]}},"racerback_thin_strap_support":{"title":"Thin-strap racerback design for high-impact sports","entries":{"thin_strap_racerback_design":"The racerback cut and thin straps free the shoulder blades for full overhead reach and add an open back for cooling, so the bra stays comfortable during the functional circuits and cardio dance sessions it’s built for.","extra_support_for_high_impact_activities_designation":"The black mesh version is explicitly marketed as offering extra support for high-impact activities, positioning it as the variant most suited to running and HIIT workouts where a locked-down feel is critical.","thick_ultra_stretch_repreve_polyester_microfibre_and_soft_cups":"The bra teams thick compressive REPREVE fabric with soft removable cups to deliver its medium-to-high impact support, allowing the thin racerback straps to stay minimal for breathability and a clean silhouette without sacrificing hold during spin and cross-training."},"entry_quotes":{"thin_strap_racerback_design":[{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"Designed with a round neckline, thin straps for a stylish look and a racerback for extra breathability when you move"}],"extra_support_for_high_impact_activities_designation":[{"url":"https://modesens.com/product/ifiv5-mesh-racerback-bra-medium-to-high-support-black-86364056/","quote":"Extra support for high-impact activities"}],"thick_ultra_stretch_repreve_polyester_microfibre_and_soft_cups":[{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"Thick, ultra-stretch REPREVE® polyester microfibre made from 6 recycled plastic bottles, micro-perforated lining"},{"url":"https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/","quote":"Soft cups with removable foam padding"}]},"entry_sources":{"thin_strap_racerback_design":["https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/"],"extra_support_for_high_impact_activities_designation":["https://modesens.com/product/ifiv5-mesh-racerback-bra-medium-to-high-support-black-86364056/"],"thick_ultra_stretch_repreve_polyester_microfibre_and_soft_cups":["https://www.lyst.com/en-ca/clothing/ifiv5-mesh-racerback-sports-bra-medium-to-high/"]}},"micro_perforated_lining_breathability":{"title":"How the micro-perforated lining improves airflow","entries":{"sweat_evaporation_pathway":"REPREVE® polyester wicks moisture off the skin, but wicking is only half the equation — the micro-perforations then let that wicked sweat evaporate through the liner rather than saturating it, which keeps the inner cup drier and the bra feeling lighter as a spin class or circuit session wears on.","built_in_breathability_longevity":"Since the micro-perforations are physical openings in the fabric, not a chemical coating, the ventilating effect doesn’t decline with washes — the holes remain unobstructed, so the bra’s cooling and drying performance is stable over the long training season, a meaningful durability difference when compared to bras that rely on topically-applied wicking finishes.","structural_integrity_vs_mesh_panels":"Because the micro-perforations are cut directly into the lining — not stitched on as separate mesh inserts — the compression layer remains uninterrupted, meaning the bra’s supportive fit doesn’t loosen over time the way it can when stretchy mesh panels start to bag out, and there are no extra seams to chafe.","thick_repreve_micro_perforated_lining_pairing":"The thick, ultra-stretch REPREVE® polyester provides the necessary compressive hold for medium-to-high impact, but dense knits can trap heat — the micro-perforated lining counters this with thousands of pinpoint vents that let hot air and body vapor escape directly through the fabric, preventing the steamy buildup that makes hard intervals feel suffocating."},"entry_quotes":{"sweat_evaporation_pathway":[{"url":"https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/","quote":"Laser-cut areas help evaporate sweat faster, keeping athletes dry and comfortable."}],"built_in_breathability_longevity":[{"url":"https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/","quote":"Selecting the right material ensures the micro-perforations remain intact through washing and regular wear."}],"structural_integrity_vs_mesh_panels":[{"url":"https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/","quote":"These perforations allow airflow while maintaining the structural integrity of the garment."}],"thick_repreve_micro_perforated_lining_pairing":[{"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."}]},"entry_sources":{"sweat_evaporation_pathway":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"],"built_in_breathability_longevity":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"],"structural_integrity_vs_mesh_panels":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"],"thick_repreve_micro_perforated_lining_pairing":["https://bushisports.com/laser-cut-ventilation-in-performance-sportswear-how-it-works/"]}}}},"handle":"racerback-sports-bra-medium-to-high-impact-support-12893-220120","storefront_path":"/en/women-sportswear/training/racerback-sports-bra-medium-to-high-impact-support--12893-220120","storefront_url":"https://ai.simons.ca/en/women-sportswear/training/racerback-sports-bra-medium-to-high-impact-support--12893-220120"}}