{"product":{"catalog_id":"f5eb90a2-5552-4c4d-af0c-fe5a655668cf","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"22e92e5e-5f9c-4e9f-9bc8-0d228e9aed5d","title":"B-Smooth High-Waist Classic Brief","description":"The B-Smooth High-Waist Classic Brief by Wacoal at Miiyu is a seamless high-waist brief constructed from stretch nylon-blend microfibre, with a nylon and cotton blend gusset for added comfort. It features a wide elasticized waistband that sits above the navel, full front and rear coverage, and flat leg opening seams for a smooth fit under clothing. Matching bras are sold separately (styles 10002-25204 and 10002-26001).","url":"https://www.simons.ca/en/women-underwear/panties/classic-briefs/b-smooth-high-waist-classic-brief--10002-26000?colourId=0","brand":"Wacoal","condition":"new","product_category":"women underwear > panties > classic briefs","material":"Body: 93% nylon, 7% elastane; Gusset: 70% nylon, 25% cotton, 5% spandex","age_group":"adult","image_url":"https://imagescdn.simons.ca/images/10002/26000/42/A1_2.jpg","additional_image_urls":["https://imagescdn.simons.ca/images/10002/26000/42/A2_2.jpg"],"images":[{"id":"img-1784702796855-0","url":"https://imagescdn.simons.ca/images/10002/26000/42/A1_2.jpg","alt_text":"B-Smooth high-waist classic brief product image (primary)","position":1,"attributes":{"other":{"summary":"Studio product shot showing a model from upper chest to upper thighs against a neutral light background with even soft lighting and minimal shadows.","observations":[{"key":"Shot composition","kind":"feature","value":"Cropped frontal crop from model mid-neck to upper thighs, centered composition with model facing forward and arms relaxed at sides.","regions":[],"evidence_status":"direct"},{"key":"Background and lighting","kind":"feature","value":"Plain, very light beige background with soft, even lighting that produces mild, diffuse shadows along the model's sides and under the bras band.","regions":[],"evidence_status":"direct"},{"key":"Model presence","kind":"feature","value":"Photographed on a live model whose torso and upper legs are visible; hands are partially visible at left and right lower edges.","regions":[{"x":0,"y":0.6,"width":0.22,"height":0.4,"confidence":"high"},{"x":0.78,"y":0.6,"width":0.22,"height":0.4,"confidence":"high"}],"evidence_status":"direct"},{"key":"Image limitations","kind":"feature","value":"Top of model head and lower thighs cropped out of frame; no visible text or labels in the scene.","regions":[],"evidence_status":"direct"}]},"colors":[{"name":"muted blue gray","part":"bra","regions":[{"x":0.16,"y":0.08,"width":0.68,"height":0.24,"confidence":"high"}],"subject":"product","description":"Muted blue-gray with a slightly darker speckled jacquard pattern creating a subtle gradient from upper cup toward lower cup; matte knit finish.","sampled_hex":"#9C5B33","estimated_hex":"#57707A"},{"name":"muted blue gray (solid)","part":"brief","regions":[{"x":0.2,"y":0.5,"width":0.6,"height":0.34,"confidence":"high"}],"subject":"product","description":"Solid muted blue-gray, visually uniform and slightly darker or denser in tone than the lower bra area, matte finish.","sampled_hex":"#5C6974","estimated_hex":"#4F6B73"}],"product":{"summary":"Front view of a two-piece underwear set on a model: a patterned wireless bra with thin straps and a high-waist solid-coverage brief in a muted blue-gray tone.","observations":[{"key":"Bra overall shape","kind":"feature","value":"Seamless-looking, molded cups with a gentle V center front and continuous fabric covering the cups creating a smooth rounded silhouette.","regions":[{"x":0.12,"y":0.06,"width":0.76,"height":0.32,"confidence":"high"}],"evidence_status":"direct"},{"key":"Bra pattern and texture","kind":"feature","value":"Dense small dot or speckle jacquard pattern concentrated at the upper cup that fades toward the lower cup and band, producing a subtle gradient texture across the bra surface.","regions":[{"x":0.16,"y":0.08,"width":0.68,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Bra straps","kind":"feature","value":"Thin, straight shoulder straps in same color and with the same small-dot motif as the bra cups, attaching at the cup outer edges and running upward out of frame over the shoulders.","regions":[{"x":0.26,"y":0.02,"width":0.12,"height":0.2,"confidence":"high"},{"x":0.62,"y":0.02,"width":0.12,"height":0.2,"confidence":"high"}],"evidence_status":"direct"},{"key":"Underbust band","kind":"feature","value":"Slightly wider elasticized band beneath the cups with a subtle dotted texture and a stitched seam line at its lower edge.","regions":[{"x":0.18,"y":0.28,"width":0.64,"height":0.07,"confidence":"high"}],"evidence_status":"direct"},{"key":"High-waist brief silhouette","kind":"feature","value":"High-rise brief with a smooth, unbroken front panel, a wide elasticized waistband that sits above the navel, and full front coverage with high cut leg openings at the sides.","regions":[{"x":0.16,"y":0.44,"width":0.68,"height":0.42,"confidence":"high"}],"evidence_status":"direct"},{"key":"Brief fabric finish","kind":"feature","value":"Matte, smooth knit fabric without visible pattern, appearing slightly compressive and uniform in color across the front panel.","regions":[{"x":0.2,"y":0.52,"width":0.6,"height":0.3,"confidence":"high"}],"evidence_status":"direct"},{"key":"Visible seams and edging","kind":"feature","value":"Narrow, flat seams around the leg openings and a thin stitched edge at the top of the waistband; no visible exposed elastic or trim.","regions":[{"x":0.18,"y":0.72,"width":0.64,"height":0.2,"confidence":"high"}],"evidence_status":"direct"}]},"packaging":{"observations":[]},"schema_version":2,"coordinate_space":{"units":"normalized","origin":"top_left"}},"variant_ids":["4486768","4486769","4486770"]},{"id":"img-1784702796855-1","url":"https://imagescdn.simons.ca/images/10002/26000/42/A2_2.jpg","alt_text":"B-Smooth high-waist classic brief product image 2","position":2,"attributes":{"other":{"summary":"Studio shot showing the model from the rear three-quarter angle against a plain light background with soft, even lighting and natural shadows; image cropped to mid-thigh and above the head.","observations":[{"key":"Shot composition","kind":"feature","value":"Three-quarter rear view of a standing model turned slightly to the left, framed from upper thighs to just above the shoulders.","regions":[],"evidence_status":"direct"},{"key":"Background","kind":"feature","value":"Uniform pale off-white background with no visible props or textures.","regions":[{"x":0,"y":0,"width":1,"height":1,"confidence":"low"}],"evidence_status":"direct"},{"key":"Lighting and shadows","kind":"feature","value":"Soft, diffused studio lighting from the front-right producing gentle highlights on shoulders and subtle shadows along the left side of the body.","regions":[],"evidence_status":"direct"},{"key":"Model styling","kind":"feature","value":"Model's left arm relaxed and hanging by the side, hair partially visible over the left shoulder; 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Do not use bleach, hot water, or tumble dry; drip dry in shade. Avoid wringing or ironing [2].","q":"Are there any care instructions for washing and drying?"}],"target_countries":"US","canonical_url":"https://www.simons.ca/en/women-underwear/panties/classic-briefs/b-smooth-high-waist-classic-brief--10002-26000?colourId=0","deep_research":{"dimensions":{"sizing_accuracy":{"title":"Sizing accuracy and what size to choose","entries":{"true_natural_waist_placement":"The brief actually sits at the natural waist, as confirmed by a reviewer who notes that many 'high-cut' briefs fall below the waist — so buyers should measure their natural waist (not hip) when consulting the size chart.","sizing_down_for_a_snugger_hold":"Because of the stretch nylon-blend microfibre, some wearers intentionally size down from their usual medium to small for a snugger 'hold-in' fit without discomfort, confirming that the fabric's give accommodates a tighter size while those who prefer a standard fit can stick to their measured size.","100_felt_true_to_size_consensus":"With 539 reviews and a unanimous 100% 'Felt true to size' rating on Zappos, this brief aligns exactly with Wacoal's size chart — there is no documented pattern of running small or large across the customer base, making it a low-risk choice for online shoppers who measure themselves.","accommodates_pear_shaped_builds":"A reviewer with a pear shape specifically notes the brief fits that body type well, suggesting the high-cut leg and stretch fabric accommodate wider hips without waistband gaping — a key consideration for pear-shaped shoppers choosing a high-waist style.","international_sizing_s_japanese_m":"One reviewer noted that the US small aligns with a Japanese medium, which helps shoppers accustomed to Asian sizing choose the correct size without measuring against the chart."},"entry_quotes":{"true_natural_waist_placement":[{"url":"https://www.zappos.com/product/review/8418615/page/4/orderBy/best","quote":"I love a high cut brief but surprisingly a lot of what are being called briefs actually hit below my waist. These do sit at my waist and have the high cut leg opening for comfort and ease of movement."}],"sizing_down_for_a_snugger_hold":[{"url":"https://www.zappos.com/product/review/8418615/page/4/orderBy/best","quote":"I'm usually a medium in most panties but I like these a little snug to hold me in so I purchase a small."}],"100_felt_true_to_size_consensus":[{"url":"https://www.zappos.com/product/review/8418615/page/6/orderBy/best","quote":"100%\"Felt true to size\""}],"accommodates_pear_shaped_builds":[{"url":"https://www.zappos.com/product/review/8418615/page/6/orderBy/best","quote":"fit my pear shape quite well"}],"international_sizing_s_japanese_m":[{"url":"https://www.zappos.com/product/review/8418615/page/4/orderBy/best","quote":"I bought an S-size brief. It is the same as Japanese size M."}]},"entry_sources":{"true_natural_waist_placement":["https://www.zappos.com/product/review/8418615/page/4/orderBy/best"],"sizing_down_for_a_snugger_hold":["https://www.zappos.com/product/review/8418615/page/4/orderBy/best"],"100_felt_true_to_size_consensus":["https://www.zappos.com/product/review/8418615/page/6/orderBy/best"],"accommodates_pear_shaped_builds":["https://www.zappos.com/product/review/8418615/page/6/orderBy/best"],"international_sizing_s_japanese_m":["https://www.zappos.com/product/review/8418615/page/4/orderBy/best"]}},"cotton_gusset_hygiene":{"title":"Cotton gusset for breathability and comfort","entries":{"cotton_moisture_absorption":"Cotton fibers can absorb up to 25 times their weight in water, pulling moisture away from the skin — in the gusset, even the 25% cotton content in this nylon-blend liner actively draws in daily sweat and discharge to keep the area dry, a capability that pure synthetic liners lack.","cushioning_and_chafe_reduction":"The cotton-blend gusset creates a soft, cushioned layer between the body and the underwear's main seams, reducing friction and rubbing against the body's most sensitive area — particularly valuable in a high-waist brief that sits firmly against the skin throughout the day.","barrier_protection_against_leakage":"Beyond breathability, the gusset acts as a secondary liner that shields the synthetic main fabric from direct contact with bodily fluids — this barrier function helps prevent discharge from staining outer clothing and reduces the odor retention that can plague synthetic-only underwear.","ph_balance_and_infection_prevention":"By wicking moisture rather than trapping it, the cotton content in the gusset helps maintain a stable intimate pH and discourages bacterial overgrowth — a direct line of defense against yeast infections and UTIs that synthetic-only crotch panels cannot offer.","breathable_cotton_layer_in_synthetic_underwear":"The main body of this brief is a nylon-blend microfibre, which on its own would trap heat and moisture; the cotton-blend gusset inserts a ventilating, natural-fiber layer precisely where breathability is most needed, reducing the warm, damp environment that can lead to skin irritation and infections."},"entry_quotes":{"cotton_moisture_absorption":[{"url":"https://xiaotex.com/en/blog/the-gusset-science","quote":"Cotton absorbs up to 25x its weight in water, pulling moisture away from skin"}],"cushioning_and_chafe_reduction":[{"url":"https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket","quote":"Having a gusset can also make underwear more comfortable to wear. The gusset cushions your most sensitive bits, ensuring that the underwear doesn't rub against it during the day."}],"barrier_protection_against_leakage":[{"url":"https://xiaotex.com/en/blog/the-gusset-science","quote":"In women's underwear, the gusset serves four critical functions: moisture management (cotton absorbs up to 25x its weight in water), air circulation (double-layer construction creates breathable airspace), temperature regulation (natural fibers prevent heat buildup), and barrier protection (shields main fabric from bodily fluids)."},{"url":"https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket","quote":"Having a panty gusset in your underwear is important because it also helps to prevent discharge from leaking through your underwear and staining your clothes."}],"ph_balance_and_infection_prevention":[{"url":"https://xiaotex.com/en/blog/the-gusset-science","quote":"- Helps maintain a healthy pH balance (prevents overgrowth of harmful bacteria)"},{"url":"https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket","quote":"discourages the underwear from trapping sweat and bacteria, which in turn reduces your risk of developing skin irritations, bacterial infections, yeast infections and more."}],"breathable_cotton_layer_in_synthetic_underwear":[{"url":"https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket","quote":"Synthetic underwear often has an extra layer of cotton inserted as a panty gusset in order to place a layer of breathable fabric right next to your body. This helps with ventilation and discourages the underwear from trapping sweat and bacteria, which in turn reduces your risk of developing skin irritations, bacterial infections, yeast infections and more."}]},"entry_sources":{"cotton_moisture_absorption":["https://xiaotex.com/en/blog/the-gusset-science"],"cushioning_and_chafe_reduction":["https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket"],"barrier_protection_against_leakage":["https://xiaotex.com/en/blog/the-gusset-science","https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket"],"ph_balance_and_infection_prevention":["https://xiaotex.com/en/blog/the-gusset-science","https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket"],"breathable_cotton_layer_in_synthetic_underwear":["https://www.leonisa.au/pages/panty-gusset-why-do-women-s-underwear-have-a-pocket"]}},"seamless_invisibility":{"title":"Seamless design hiding panty lines","entries":{"high_waist_smooth_torso_coverage":"The high-waist cut rises above the natural waist, removing the mid-torso seam that can pinch or create a visible line on lower-rise styles — one reviewer notes the brief ‘came up very high which I like because then everything is smooth on torso,’ confirming the full-coverage invisible effect under form-fitting clothing."},"entry_quotes":{"high_waist_smooth_torso_coverage":[{"url":"https://www.zappos.com/product/review/9963118","quote":"On me they came up very high which I like because then everything is smooth on torso."}]},"entry_sources":{"high_waist_smooth_torso_coverage":["https://www.zappos.com/product/review/9963118"]}},"fabric_stretch_recovery":{"title":"Stretch and shape retention over time","entries":{"nylon_s_abrasion_resistance":"Nylon resists tearing and abrasion better than many synthetic fibers, so the high-waist band and seams of the B-Smooth brief withstand repeated pulling and body movement without fraying, ensuring a smooth, reliable fit over time rather than developing thin spots or tears at stress points."},"entry_quotes":{"nylon_s_abrasion_resistance":[{"url":"https://spandexpalace.com/blogs/everything-to-know-about-spandex-fabric/does-nylon-spandex-shrink-over-time","quote":"Nylon is a synthetic fiber known for its strength and durability. It resists tearing and abrasion, making it an ideal choice for garments that need to withstand wear and stress."}]},"entry_sources":{"nylon_s_abrasion_resistance":["https://spandexpalace.com/blogs/everything-to-know-about-spandex-fabric/does-nylon-spandex-shrink-over-time"]}},"b_smooth_collection_position":{"title":"What the B-Smooth collection is known for","entries":{"collection_best_seller_status":"B-Smooth is promoted as Wacoal's best-selling panty collection, built for 24/7 comfort — so this brief carries the line's most-tested, most-repurchased design formula.","40_more_stretch_recovery_vs_microfiber":"Wacoal’s proprietary B-Smooth nylon-spandex blend is engineered to recover 40% more stretch than standard microfiber, so the high-waist silhouette retains its shape through all-day sit-stand cycles instead of bagging out by midday.","entry_level_line_for_wacoal_s_fit_system":"In broader Wacoal recommendations, the B-Smooth brief is positioned as the smart entry point for testing the brand's fit engineering — choosing this high-waist style is a low-commitment way to experience Wacoal's construction quality before moving into more technical shapewear or lace collections."},"entry_quotes":{"collection_best_seller_status":[{"url":"https://wacoal.ca/collections/b-smooth-panties","quote":"Our best-selling B-Smooth® panties are designed for comfort 24/7. Made with ultra-soft, smooth fabric, these everyday favorites feel so good you’ll never want to take them off."}],"40_more_stretch_recovery_vs_microfiber":[{"url":"https://bestchoiceinsider.com/wacoal-bras-japanese-precision-engineering-for-american-women/","quote":"This brief uses Wacoal’s proprietary B-Smooth fabric, a nylon-spandex blend engineered to have 40% more stretch recovery than standard microfiber while maintaining a matte finish that disappears under clothing."}],"entry_level_line_for_wacoal_s_fit_system":[{"url":"https://bestchoiceinsider.com/wacoal-bras-japanese-precision-engineering-for-american-women/","quote":"Start with the B-Smooth brief or Visual Effects Minimizer to test the fit system before investing in the more complex body briefer."}]},"entry_sources":{"collection_best_seller_status":["https://wacoal.ca/collections/b-smooth-panties"],"40_more_stretch_recovery_vs_microfiber":["https://bestchoiceinsider.com/wacoal-bras-japanese-precision-engineering-for-american-women/"],"entry_level_line_for_wacoal_s_fit_system":["https://bestchoiceinsider.com/wacoal-bras-japanese-precision-engineering-for-american-women/"]}}}},"handle":"b-smooth-high-waist-classic-brief-10002-26000","storefront_path":"/en/women-underwear/panties/classic-briefs/b-smooth-high-waist-classic-brief--10002-26000","storefront_url":"https://ai.simons.ca/en/women-underwear/panties/classic-briefs/b-smooth-high-waist-classic-brief--10002-26000"}}