
Wacoal
B-Smooth High-Waist Classic Brief
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).
- Material
- Stretch nylon-blend microfibre, Nylon and cotton blend gusset
- Gender
- female
- Style
- classic
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Size
Specifications
High-waist classic brief in stretch nylon-blend microfibre with cotton gusset for comfort and support.
Stretch nylon-blend microfibre, nylon and cotton blend gusset, elastic waistband, high waist.
- Material
- Stretch nylon-blend microfibre, Nylon and cotton blend gusset
- Secondary
- cotton
- Style
- classic
- Occasion
- everyday
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- stretch nylon-blend microfibre
- nylon and cotton blend gusset
- elastic waistband
- high waist
- classic brief silhouette
- smoothing effect
- matching bra sold separately
- from Wacoal at Miiyu
Product Insights
The Wacoal B-Smooth High-Waist Classic Brief, priced at 22 CAD and in stock, is the brand's best-selling panty collection, engineered to create a smooth, line-free silhouette under fitted clothes with a matte finish that prevents visible sheen. Its stretch-recovery nylon/elastane material offers 40% more stretch recovery than standard microfiber to prevent bagging, while the 93% nylon content resists abrasion against thin spots. A cotton gusset wicks moisture, reduces chafing, and maintains pH balance. All 539 Zappos reviewers rate it true to size. However, to preserve its stretch recovery, abrasion resistance, shape, and matte finish, the brief requires hand-washing and drip-drying.
Verified claims
- Gusset
- Cotton gusset wicks moisture, reduces chafing, and maintains pH balance.
- Sizing
- 539 Zappos reviewers unanimously rate the brief true to size.
- Stretch recovery
- 40% more stretch recovery than standard microfiber prevents bagging.
- Abrasion resistance
- 93% nylon content resists abrasion to prevent thin spots.
- Best-seller
- B-Smooth is Wacoal's best-selling panty collection.
- Fit
- High-waist design with stretch-recovery fabric eliminates panty lines under fitted clothes.
- Fabric finish
- Matte finish prevents visible sheen under thin or clingy fabrics.
- Brand positioning
- Wacoal's best-selling panty and entry point to its fit engineering.
- Material
- Stretch-recovery nylon/elastane; cotton gusset wicks moisture, prevents chafe.
- Smooth silhouette
- High-waist cut creates a smooth, line-free silhouette under clothing.
- Care routine
- Hand-washing and drip-drying preserves stretch recovery, abrasion resistance, shape, and matte finish.
Product record
- Title
- B-Smooth High-Waist Classic Brief
- Brand
- Wacoal
- Price
- 22 CAD
- Availability
- In stock
Image Analysis
2 images- 01

Product
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.
- Bra overall shapeSeamless-looking, molded cups with a gentle V center front and continuous fabric covering the cups creating a smooth rounded silhouette.
1 region
x 0.12 · y 0.06 · w 0.76 · h 0.32 (high) - Bra pattern and textureDense 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.
1 region
x 0.16 · y 0.08 · w 0.68 · h 0.20 (high) - Bra strapsThin, 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.
2 regions
x 0.26 · y 0.02 · w 0.12 · h 0.20 (high); x 0.62 · y 0.02 · w 0.12 · h 0.20 (high) - Underbust bandSlightly wider elasticized band beneath the cups with a subtle dotted texture and a stitched seam line at its lower edge.
1 region
x 0.18 · y 0.28 · w 0.64 · h 0.07 (high) - High-waist brief silhouetteHigh-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.
1 region
x 0.16 · y 0.44 · w 0.68 · h 0.42 (high) - Brief fabric finishMatte, smooth knit fabric without visible pattern, appearing slightly compressive and uniform in color across the front panel.
1 region
x 0.20 · y 0.52 · w 0.60 · h 0.30 (high) - Visible seams and edgingNarrow, flat seams around the leg openings and a thin stitched edge at the top of the waistband; no visible exposed elastic or trim.
1 region
x 0.18 · y 0.72 · w 0.64 · h 0.20 (high)
Other
Studio product shot showing a model from upper chest to upper thighs against a neutral light background with even soft lighting and minimal shadows.
- Shot compositionCropped frontal crop from model mid-neck to upper thighs, centered composition with model facing forward and arms relaxed at sides.
- Background and lightingPlain, very light beige background with soft, even lighting that produces mild, diffuse shadows along the model's sides and under the bras band.
- Model presencePhotographed on a live model whose torso and upper legs are visible; hands are partially visible at left and right lower edges.
2 regions
x 0.00 · y 0.60 · w 0.22 · h 0.40 (high); x 0.78 · y 0.60 · w 0.22 · h 0.40 (high) - Image limitationsTop of model head and lower thighs cropped out of frame; no visible text or labels in the scene.
Colors
muted blue gray· bra#9C5B33muted blue gray (solid)· brief#5C6974- Bra overall shapeSeamless-looking, molded cups with a gentle V center front and continuous fabric covering the cups creating a smooth rounded silhouette.
- 02

Product
Rear view of a model wearing a high-waist seamless brief and matching bra; brief shows smooth knit fabric, elasticized waistband, and full rear coverage. Bra back with adjustable straps and hook-and-eye closure is partially visible.
- High-waist brief shapeSeamless high-waist brief with a wide elasticized waistband sitting above the hips and full rear coverage with a gently contoured seat seam visible as a faint vertical stitch line.
1 region
x 0.27 · y 0.47 · w 0.52 · h 0.47 (high) - Brief fabric and finishSmooth, slightly lustrous knit fabric with a uniform texture and minimal visible stitching except at leg openings and waistband; fabric lies flat against the skin.
1 region
x 0.34 · y 0.55 · w 0.36 · h 0.38 (high) - Waistband detailWide, flat waistband made from the same knit material with a subtle top edge finish and no visible external elastic casing.
1 region
x 0.31 · y 0.48 · w 0.45 · h 0.12 (high) - Leg opening finishNarrow turned-under hems at the leg openings with stitching visible where the fabric meets the thigh.
1 region
x 0.33 · y 0.86 · w 0.34 · h 0.12 (high) - Matching bra backBack of a matching bra in the same color family with adjustable shoulder straps, metal or plastic slider adjusters, and a two-row hook-and-eye closure; bra fabric shows a subtle dotted pattern.
1 region
x 0.18 · y 0.08 · w 0.66 · h 0.35 (high) - Strap hardwareSmall rectangular strap adjusters matching the strap color, positioned on both shoulder straps near the upper back.
2 regions
x 0.56 · y 0.07 · w 0.12 · h 0.12 (high); x 0.28 · y 0.12 · w 0.10 · h 0.11 (high) - Skin contact and fitGarments sit smoothly against the model's skin with minimal wrinkling or gaping, indicating a close fit.
Other
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.
- Shot compositionThree-quarter rear view of a standing model turned slightly to the left, framed from upper thighs to just above the shoulders.
- BackgroundUniform pale off-white background with no visible props or textures.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (low) - Lighting and shadowsSoft, diffused studio lighting from the front-right producing gentle highlights on shoulders and subtle shadows along the left side of the body.
- Model stylingModel's left arm relaxed and hanging by the side, hair partially visible over the left shoulder; image cropped so the model's face is partially out of frame.
1 region
x 0.04 · y 0.00 · w 0.34 · h 0.34 (high)
Colors
slate blue-gray· brief body#728393slate blue-gray with light dot pattern· bra fabric#72848C- High-waist brief shapeSeamless high-waist brief with a wide elasticized waistband sitting above the hips and full rear coverage with a gently contoured seat seam visible as a faint vertical stitch line.