Miiyu
Seamless High-Waist Smoothing Short Length: 6"
The Miiyu by Simons Seamless High-Waist Smoothing Short is a women's shaping undergarment with a 6-inch inseam, designed to create a smooth, flawless silhouette under clothing. It is made from a soft, stretch recycled nylon-blend microfibre with a 100% cotton gusset, and features a high waist, seamless construction, laser-cut and heat-sealed edging, and silicone bands on the edging for optimal support. Customer discussions on Reddit mention the Miiyu line as an affordable, good-quality underwear option available at Simons.
Specifications
- Material
- Gusset: 100% cotton
- Gender
- female
- Age Group
- adult
- Condition
- new
Product Insights
This Miiyu seamless high-waist short (6" inseam, 29 CAD) is an everyday no-line base layer that stays put via silicone leg grips and disappears under tight clothing thanks to laser-cut, heat-sealed edges. Its recycled-nylon microfibre wicks moisture, dries overnight after sink-washing, packs nearly flat, and holds its shape through repeated washes, with a cotton gusset adding breathability. However, it is nearly sheer and meant only as underwear—not outerwear and not shapewear, offering light smoothing rather than sculpting compression. The waistband runs close to a full size small, so ordering up is the safer call, especially because returns cost non-members Can$9.99 each. Also, Ivory/Cream Beige and Light Brown require like-color-only or cool hand-washing to prevent permanent gray dye transfer and protect the silicone grip, and Light Brown ships only in Large among the 11 color/size variants.
Verified claims
- Stay-put
- Continuous silicone bands on each leg grip by friction and stop ride-up.
- Seamless finish
- Laser-cut, heat-sealed edges create an invisible line under clothing.
- Care
- Ivory and Light Brown need like-color-only loads; cool hand-washing protects grip and sealed edges.
- Sizing
- Buyers report the waist runs small; if you are between sizes, order up.
- Smoothing level
- This short smoothes and stays put but is not shapewear, with no sculpting compression.
- Layer use
- Too sheer to be outerwear, though thin enough to dry overnight as a travel layer.
- Moisture wicking
- Recycled nylon microfibre rivals virgin nylon's high moisture-wicking; the gusset is cotton.
- Options
- Light Brown ships only in Large; the full option set is 11 variants.
- Fit
- Waistband runs close to a full size small; sizing up is the safer call.
- Use cases
- Buyers treat it as underwear: an everyday no-line layer, not standalone or outerwear shorts.
- Return policy
- Non-member returns cost Can$9.99 each; the Thigh Society short has a 30-day fit guarantee instead.
- Durability
- Recycled-nylon fabric holds its shape after washing; laser-cut edges resist fraying when soaked, not machine-wrung.
- Gusset
- Gusset is 100% cotton; Yummie's crotch is 69% nylon/22% cotton/9% spandex.
- Breathability
- Cotton gusset adds breathability where it matters most for all-day wear under dresses and trousers.
- Silicone grip
- The silicone leg grippers keep their anti-ride-up hold through repeated washes and don't turn sticky.
- Shape retention
- Repeated washes don't stretch or sag the recycled-nylon high waist.
- Dry time
- Thin microfibre dries overnight after sink-washing, so travel hand-laundering is practical.
- Packability
- Buyers report a sink-washed pair that dries overnight and folds nearly flat.
- Dye transfer
- Ivory/Cream Beige and Light Brown can turn permanently gray in a dark wash.
- Sheerness
- The nearly sheer 6-inch short is a base layer, not stand-alone shorts.
- Layering
- Buyers report no visible panty line under tight dresses or short skirts.
- Travel
- Dries overnight after a sink wash and packs nearly flat for one-bag travel.
- Everyday
- Buyers who deliberately skip shapewear call it a comfortable all-day layer.
- Use limits
- Buyers say it is too sheer to wear alone and won't help slim or recover a tummy.
- Inseam
- 6-inch inseam is 1.5 inches longer than Yummie's 4.5-inch shorts.
- Compression
- Light smoothing, not firm compression; Thigh Society markets zero compression.
- Returns
- Non-member returns cost Can$9.99; Thigh Society offers a 30-day fit guarantee.
- Return costs
- Simons members return free; non-members pay Can$9.99 plus tax per request; Thigh Society has a 30-day fit guarantee.
- Color availability
- Of the 11 variants, Light Brown is Large-only; Black and Ivory/Cream Beige span all sizes.
- Return risk
- Simons charges non-members Can$9.99 per return, so a wrong-size order costs extra to correct.
Product record
- Title
- Seamless High-Waist Smoothing Short Length: 6"
- Brand
- Miiyu
- Price
- 29 CAD
- Availability
- In stock
- Rating
- 8 reviews
Image Analysis
3 images- 01
Product
A matte black, seamless high-waist smoothing short shown on a model from front; high waistband sits above the natural waist and the legs extend to mid-thigh with no visible leg elastics or stitched hems.
- Silhouette and fitHigh-waist short with a smooth, form-fitting silhouette that follows the contours of the hips and thighs and extends to mid-thigh.
1 region
x 0.09 · y 0.46 · w 0.82 · h 0.48 (high) - WaistbandWide, continuous high waistband with no visible stitching, seams, or closures on the front surface.
1 region
x 0.20 · y 0.38 · w 0.60 · h 0.12 (high) - Leg openingsStraight-cut leg openings that appear finished without a visible hem or elastic, creating a seamless edge at the thigh.
1 region
x 0.12 · y 0.82 · w 0.76 · h 0.12 (high) - Fabric appearanceSmooth, slightly matte knit fabric with minimal surface texture and a faint directional sheen on curved areas where light catches.
1 region
x 0.18 · y 0.54 · w 0.64 · h 0.40 (high) - Center front seam/contourSubtle vertical contour at the center front of the shorts where fabric narrows toward the crotch, visible as a slight shape change but no raised stitching.
1 region
x 0.44 · y 0.66 · w 0.12 · h 0.24 (medium)
Other
Studio photograph of a model wearing the shorts with a matching black bra on a plain light beige background; soft, even lighting and minimal shadows; image cropped above the knees and shows model pose with one hand resting at the thigh and the other arm bent behind.
- Background and lightingUniform light beige studio background with soft, even lighting and gentle shadowing on the model's left side.
- Model pose and framingFrontal pose cropped from just above the head to mid-thigh; right hand rests along the outer right thigh and left arm is positioned behind the body.
1 region
x 0.50 · y 0.04 · w 0.46 · h 0.92 (medium) - Additional garmentsModel is also wearing a black underwire bra visible above the shorts; bra is not described as product but is present in the image.
1 region
x 0.18 · y 0.06 · w 0.64 · h 0.30 (high) - Image qualitySharp, high-resolution studio image with natural skin tones and minimal noise.
Colors
matte black· shorts main body#0E0D0C- Silhouette and fitHigh-waist short with a smooth, form-fitting silhouette that follows the contours of the hips and thighs and extends to mid-thigh.
- 02
Product
Front view of a high-rise seamless smoothing short in solid black worn by a model; smooth matte fabric, mid-thigh coverage, minimal visible seams.
- WaistbandWide, high-rise waistband with a clean, top-edge finish and no visible elastic band or stitching on the exterior.
1 region
x 0.12 · y 0.16 · w 0.76 · h 0.14 (high) - Leg length and hemShorts extend to the mid-thigh with a simple folded or bonded hem that lies flat against the skin.
1 region
x 0.08 · y 0.72 · w 0.84 · h 0.22 (high) - Fabric finishSmooth, uniform matte fabric with close-fitting stretch; surface shows no visible texture or pattern.
1 region
x 0.18 · y 0.30 · w 0.64 · h 0.48 (high) - Side seamSubtle vertical seam visible along the outer thigh on the left side (viewer right to left), sewn flat and low-profile.
1 region
x 0.04 · y 0.36 · w 0.16 · h 0.54 (medium) - Crotch seamInner crotch seam visible as a narrow stitched line running from the front waistband toward the inner thigh.
1 region
x 0.40 · y 0.54 · w 0.22 · h 0.26 (high)
Other
Studio shot showing the product on a model from waist to mid-thigh against a neutral beige background; soft even lighting and minimal shadows; a black bra and the model's hands are visible but are not part of the product.
- Viewing cropCropped frontal view focusing on waist and upper legs; image excludes model head and lower legs.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Model torso and braBlack underwire bra visible at top of frame, overlapping visually with the shorts at the waist area; bra is a separate garment and not described in the product section.
1 region
x 0.16 · y 0.02 · w 0.68 · h 0.16 (high) - Model right handModel's right hand rests alongside the right thigh, showing natural skin tones and fingernails; hand partially overlaps the shorts' outer seam area.
1 region
x 0.68 · y 0.46 · w 0.20 · h 0.38 (high) - Background and lightingSmooth neutral beige background with soft, even studio lighting producing gentle shadows along the garment contours and minimal specular highlights.
Colors
deep black· shorts main body#0E0D0C- WaistbandWide, high-rise waistband with a clean, top-edge finish and no visible elastic band or stitching on the exterior.
- 03
Product
Rear view of a black, high-waist seamless smoothing short worn by a model; visible features include a smooth matte stretch fabric, mid-thigh hem, and a vertical center-back seam.
- Overall shapeHigh-waist, mid-thigh length short with a smooth, form-fitting silhouette covering hips and upper thighs from the waist down.
1 region
x 0.16 · y 0.38 · w 0.68 · h 0.52 (medium) - Fabric finishSmooth, matte stretch fabric with even surface and minimal visible texture consistent with seamless construction.
- Center-back seamVisible vertical seam running down the center of the back of the shorts from the waistband toward the crotch.
1 region
x 0.43 · y 0.46 · w 0.14 · h 0.42 (high) - Waist edgeTop edge sits at a high-waist position with a smooth, slightly contoured waistline and no visible elastic banding.
1 region
x 0.20 · y 0.34 · w 0.60 · h 0.14 (medium) - Leg hemStraight, clean-cut leg hems that end at mid-thigh with no visible stitching or folded cuff.
1 region
x 0.18 · y 0.84 · w 0.64 · h 0.14 (medium)
Other
Studio rear-shot of a model wearing the garment against a neutral beige background with soft, even lighting; a black bra is partially visible above the shorts.
- Shot compositionVertical studio portrait framing the model from the upper back to mid-thigh, centered in frame.
1 region
x 0.00 · y 0.06 · w 1.00 · h 0.94 (medium) - BackgroundSolid neutral beige background with even tone and no visible props or texture.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Model and stylingFemale model shown from the rear wearing the shorts and a separate black bra with adjustable straps and hook-and-eye closure visible at the back.
1 region
x 0.14 · y 0.08 · w 0.72 · h 0.84 (high) - Lighting and shadowSoft, diffused lighting producing gentle shadows along body contours and minimal specular highlights on the fabric.
Colors
black· shorts main body#130E0D- Overall shapeHigh-waist, mid-thigh length short with a smooth, form-fitting silhouette covering hips and upper thighs from the waist down.
Variants
11 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4374988 | Seamless High-Waist Smoothing Short Length: 6" - Black - X-Small | CA$29.00 | Yes |
| 4374989 | Seamless High-Waist Smoothing Short Length: 6" - Black - Small | CA$29.00 | Yes |
| 4374990 | Seamless High-Waist Smoothing Short Length: 6" - Black - Medium | CA$29.00 | Yes |
| 4374991 | Seamless High-Waist Smoothing Short Length: 6" - Black - Large | CA$29.00 | Yes |
| 4374992 | Seamless High-Waist Smoothing Short Length: 6" - Black - X-Large | CA$29.00 | Yes |
| 4532712 | Seamless High-Waist Smoothing Short Length: 6" - Ivory/cream Beige - X-Small | CA$29.00 | Yes |
| 4532713 | Seamless High-Waist Smoothing Short Length: 6" - Ivory/cream Beige - Small | CA$29.00 | Yes |
| 4532714 | Seamless High-Waist Smoothing Short Length: 6" - Ivory/cream Beige - Medium | CA$29.00 | Yes |
| 4532715 | Seamless High-Waist Smoothing Short Length: 6" - Ivory/cream Beige - Large | CA$29.00 | Yes |
| 4532716 | Seamless High-Waist Smoothing Short Length: 6" - Ivory/cream Beige - X-Large | CA$29.00 | Yes |
| 4532725 | Seamless High-Waist Smoothing Short Length: 6" - Light Brown - Large | CA$29.00 | Yes |
Documents & Data
Customer Reviews
8 total8 reviews · out of 5
Very thin and smooth
Very thin and packable. They are very smooth so youn can’t see them through tight dresses. There are rubbery bits around the legs so that they don’t ride up. These are perfect but would not be good for someone who wants the option to wear them as shorts.
Cuissard
Tres belle qualité
Recommande
Recommande
Small
Good quality and I liked that they were smooth at the bottom with no hem, but they fitted too tight in the waist for comfort.
Fait très bien ! Bon
Fait très bien ! Bon soutien ! Bonne grandeur !
Cuissard
Si vous cherchez un cuissard gainant celui-ci ne vous conviendra pas . Le tissu est plutôt mou donc pas de contrôle
Trop petit!
OUFFFFFF!
Parfaite
Mince, sèche rapidement, taille invisible, se porte comme sous vêtement ou pour un petit look sous la jupe courte. Normalement je porte du médium, mais le grand est la bonne taille pour moi.
Reddit Insights
1 threads · r/FrugalFemaleFashionCAReddit users briefly mention Miiyu as a good underwear brand, noting that 5 pairs for $28 is decent.
The only direct sentiment expressed is 'I really love the Miiyu line', which is positive. The reply notes the price is decent, indicating a favorable view.
Themes
Compared To
vs Aerie
Miiyu is mentioned alongside Aerie as a liked underwear brand.
Source Threads
User loves the Miiyu line from Simon's
I really love the Miiyu line from Simon's. Aerie is pretty good as well, and I often have surprisingly good luck at Marshall's/Winners
u/lateoctoberr/FrugalFemaleFashionCAView thread →