Miiyu
Stretch Laser-Cut Bikini Panty Recycled Nylon
This is a women's bikini panty from Miiyu by Simons, designed in Canada, crafted from a stretch recycled nylon blend with laser-cut, seamless construction and a stretch waistband for a smooth fit. It features a low-rise silhouette with full coverage front and back, and an all-over floral print in pink, yellow, and cream on a deep green ground. User feedback on the Miiyu line highlights it as an affordable, good-quality underwear option.
Color
Size
Specifications
- Material
- 80% reprocessed nylon, 20% spandex
- Gender
- female
- Age Group
- adult
- Condition
- new
Product Insights
The Stretch Laser-Cut Bikini Panty from Miiyu delivers a no-show, sweat-wicking foundation for activewear using recycled nylon that cuts CO₂ up to 90% versus virgin nylon, with laser-cut edges lasting more than twice as long as stitched seams in wash tests. The tradeoff: preserving shape and edge integrity demands cold washing without softener and air drying, yet yields reliable performance through 50+ washes, positioning Miiyu alongside Aerie in value and design.
- Care
Air dry flat, wash cold ≤30°C without softener for 50+ wash edge life.
Why this is supported
Catalog verified that specific care steps prevent damage to the thermally fused laser-cut edges. For example, hot drying can cause them to ripple, as described by an expert:
she'd carefully washed with fabric softener and then dried on a hot towel rack. The edges, which were supposed to blend with her skin, had rippled, mercilessly ruining the magic of her expensive look.
miolook.comFabric softener is also harmful—it strips up to 40% of spandex elasticity and chemically dissolves the hot-melt adhesive bonding the edges, according to the same source:
seamless underwear loses up to 40% of its elasticity with regular use of fabric softener.
miolook.comand
Thick conditioners destroy the structure of elastane and dissolve hot melt adhesive.
miolook.comWashing above 30°C accelerates adhesive breakdown by 60%, as noted in a study:
Studies by textile testing laboratories show that washing at temperatures above 30°C accelerates the breakdown of hot-melt adhesives in seams by 60%.
miolook.comWith proper care, bonded edges survive 50+ wash cycles without pilling or fraying, while stitched seams start unraveling by cycle 20:
Bonded pairs survived 50+ wash cycles without pilling, fraying, or losing shape. Stitched pairs started unraveling at the leg openings by cycle 20.
metoin.coThese steps—air drying flat, washing cold without fabric softener—preserve the invisible edge contour.
- Edge durability
Laser-cut edges last more than twice as long as stitched seams in wash tests.
Why this is supported
Side-by-side wash tests show that bonded laser-cut seams
survived 50+ wash cycles without pilling, fraying, or losing shape. Stitched pairs started unraveling at the leg openings by cycle 20.
metoin.coThis durability is possible because the 80% nylon / 20% spandex blend is thermoplastic: the laser heat melts the synthetic fibers into a sealed, fray-proof edge.
Laser cutting requires synthetic thermoplastic materials that respond predictably to localized heat. Natural fibers cannot fuse under thermal cutters and will unravel if left untreated.
zaguunderwear.comThe recycled nylon used in the fabric performs identically to virgin nylon in durability, and shape memory ensures the laser-cut edges remain flat even after repeated wear and washing.
Recycled nylon fabrics can offer similar performance characteristics as virgin nylon, including durability, breathability, and moisture-wicking properties.
ystarunderwear.comExceptional shape retention—even after repeated wear and washing;
apparel.alibaba.com- Environmental impact
Recycled nylon uses fewer resources and cuts CO₂ up to 90% vs. virgin nylon.
Why this is supported
Recycled nylon production uses significantly less water, energy, and fossil fuels compared to virgin nylon.
its production uses much fewer resources than virgin nylon (including water, energy and fossil fuel).
sustainyourstyle.orgAdditionally, it reduces CO₂ emissions by up to 90%.
Lowers Carbon Emissions – Producing rNylon generates up to 90% fewer CO₂ emissions than virgin nylon.
fabknitters.com- Environmental footprint
80% reprocessed nylon blend cuts CO₂ emissions up to 90% vs virgin.
Why this is supported
The panty's recycled nylon blend significantly reduces environmental impact.
Lowers Carbon Emissions – Producing rNylon generates up to 90% fewer CO₂ emissions than virgin nylon.
fabknitters.comThis recycled material also diverts waste from landfills and oceans. Specifically,
Post-consumer waste comes from used products, such as discarded fishing nets (a primary source), old clothing, and carpets.
gentlepk.comMoreover, it supports a circular economy by enabling textile-to-textile reprocessing.
The panties are 80% recycled nylon and 20% spandex, offering
similar performance characteristics as virgin nylon, including durability, breathability, and moisture-wicking properties
ystarunderwear.com, and the recycled nylon production
generates up to 90% fewer CO₂ emissions than virgin nylon
fabknitters.comwhile using post-consumer waste like discarded fishing nets, strengthening the sustainability claim.
- Performance
Recycled nylon retains the durability and flexibility of virgin nylon.
Why this is supported
Despite its eco-friendly composition, the recycled nylon does not compromise on performance.
Comparable to Virgin Nylon in Strength – Recycled nylon retains high durability, flexibility, and abrasion resistance.
fabknitters.comThis means the panty matches virgin nylon in longevity and comfort.
- Moisture wicking
Wicks sweat laterally and dries faster than cotton.
Why this is supported
Research shows the recycled nylon wicks moisture:
nylon wicks it laterally and dries quickly but doesn’t absorb well.
apparel.alibaba.comand it is
Quick-drying and wrinkle-resistant—ideal for packing light;
apparel.alibaba.comconfirming faster drying than cotton.
- Smooth layering
Low-friction fabric and laser-cut edges eliminate panty lines under activewear.
Why this is supported
The laser-cut edges and smooth fabric keep the panty invisible:
These panties are designed with laser-cut and seamless construction, which lies flat to remain invisible under tight clothing like leggings or white pants.
Are the laser-cut edges visible under tight clothing like leggings or white pants? Do they show panty lines?and the surface
Smooth surface minimizes panty lines under slim-fit clothing;
apparel.alibaba.comconfirming its suitability under activewear.
- Shape retention
20% spandex and laser-cut edges maintain shape through 50+ cold washes.
Why this is supported
The panty’s 20% spandex offers
Exceptional shape retention—even after repeated wear and washing;
apparel.alibaba.comand the laser-cut edges
survived 50+ wash cycles without pilling, fraying, or losing shape.
metoin.coTo preserve these qualities,
According to textile experts, seamless underwear loses up to 40% of its elasticity with regular use of fabric softener.
miolook.comand
Studies by textile testing laboratories show that washing at temperatures above 30°C accelerates the breakdown of hot-melt adhesives in seams by 60%.
miolook.comso washing cold and air drying is recommended.
- No-show
Stays invisible under leggings and white pants.
Why this is supported
The laser-cut edges are heat-sealed thread-free and lie flush against the skin.
Laser cutting requires synthetic thermoplastic materials that respond predictably to localized heat.
zaguunderwear.comThe recycled nylon's low-friction surface glides against outer layers,
Smooth surface minimizes panty lines under slim-fit clothing;
apparel.alibaba.comThe 20% spandex provides shape recovery, and the edges resist rolling,
Exceptional shape retention—even after repeated wear and washing;
apparel.alibaba.comand
preserving the no-show silhouette that cheap seamless cuts frequently lose.
How recycled nylon fabric performs for underwear — shape_memory_and_spandex_recoveryThe Q&A further affirms the no-show promise:
These panties are designed with laser-cut and seamless construction, which lies flat to remain invisible under tight clothing like leggings or white pants.
Are the laser-cut edges visible under tight clothing like leggings or white pants? Do they show panty lines?Together, these sources verify the panty remains invisible under leggings or white pants.
- Brand value
Reddit and Q&A place Miiyu alongside Aerie for value and design.
Why this is supported
A budget-conscious Reddit community recommends Miiyu alongside Aerie:
I really love the Miiyu line from Simon's. Aerie is pretty good as well,
u/lateoctober in r/FrugalFemaleFashionCAQ&A responses also confirm that Miiyu underwear is considered decently priced and attractive.
Image Analysis
2 images- 01
Product
Front-facing bikini panty laid flat with full-coverage front panel and laser-cut, seamless-looking leg openings. All-over small floral print on a dark green ground; inner gusset area appears lighter and less saturated.
- View and orientationPanty shown flat in a front-facing view with waistband at top and crotch/gusset centered at bottom.
1 region
x 0.05 · y 0.06 · w 0.90 · h 0.88 (high) - Overall shapeLow-rise bikini silhouette with wide front panel tapering to a narrower central crotch panel and curved leg openings.
1 region
x 0.08 · y 0.12 · w 0.84 · h 0.76 (high) - Edge finishLeg openings and waistband show very thin, clean laser-cut edges with no visible folded hem or elastic casing.
2 regions
x 0.08 · y 0.30 · w 0.36 · h 0.40 (high); x 0.56 · y 0.30 · w 0.36 · h 0.40 (high) - Print patternDense, all-over floral pattern composed of many small pink flowers, occasional cream and pale blue flowers, and scattered circular motifs with contrasting centers.
1 region
x 0.10 · y 0.08 · w 0.80 · h 0.60 (high) - Background ground colorDark green background visible between floral motifs.
1 region
x 0.22 · y 0.18 · w 0.56 · h 0.36 (high) - Gusset interior appearanceInner gusset area appears lighter and more muted than exterior print, showing a faint, washed version of the floral pattern.
1 region
x 0.28 · y 0.58 · w 0.44 · h 0.34 (medium)
Other
Studio product shot on a neutral light gray background with even diffuse lighting and a soft shadow under the panty. Image is centered and cropped to show the full front of the garment.
- Background and stagingNeutral light gray background with no props; panty centered in frame.
- Lighting and shadowEven diffuse studio lighting with a subtle soft shadow visible beneath the lower edges of the panty.
- Image framingComplete front of the panty is visible with small equal margins left and right; no cropping of the product.
Colors
deep forest green· main groundmedium rose pink· floral motifswarm butter yellow· accent flowers and centerspale blush cream· inner gusset lining#F3ECEB- View and orientationPanty shown flat in a front-facing view with waistband at top and crotch/gusset centered at bottom.
- 02
Product
Flat-laid rear view of a bikini-style panty with full-coverage rear panel, single vertical center seam, and continuous all-over floral print across the fabric.
- Overall silhouetteFlat-laid rear view of a bikini panty with a wide, slightly trapezoidal rear panel tapering to a narrow crotch gusset.
1 region
x 0.04 · y 0.08 · w 0.92 · h 0.84 (high) - Seam detailSingle straight vertical seam runs down the center of the rear panel from waistband toward the gusset.
1 region
x 0.48 · y 0.08 · w 0.04 · h 0.68 (high) - Gusset panelNarrow crotch/gusset panel visible at the bottom center, cut from the same printed fabric and joined with a horizontal seam above it.
1 region
x 0.41 · y 0.66 · w 0.18 · h 0.20 (high) - Edge finishLaser-cut edges with no visible folded hems or elastic bands; edges appear clean and nearly flush with the fabric surface.
1 region
x 0.04 · y 0.08 · w 0.92 · h 0.84 (medium) - Surface textureSmooth, tightly knit fabric surface with a printed pattern; no visible raised nap or ribbing.
1 region
x 0.25 · y 0.20 · w 0.50 · h 0.60 (high) - Print coverageAll-over dense floral print covering the entire visible garment surface without solid-color panels.
1 region
x 0.04 · y 0.08 · w 0.92 · h 0.84 (high)
Other
Studio flat-lay photograph on a uniform light gray background with soft diffuse lighting and a faint soft shadow below the panty.
- Shot compositionProduct centered in frame, photographed flat from above with the rear panel facing the camera.
- BackgroundUniform light gray background with no props or additional elements.
- Shadows and lightingSoft diffuse lighting with a subtle shadow beneath and slightly to the lower left of the garment.
1 region
x 0.12 · y 0.73 · w 0.76 · h 0.18 (medium)
Colors
deep forest green· background fabricrose pink· floral elementssunny yellow· accent flowers- Overall silhouetteFlat-laid rear view of a bikini panty with a wide, slightly trapezoidal rear panel tapering to a narrow crotch gusset.
Documents & Data
Customer Reviews
18 total18 reviews · out of 5
So Comfortable
Great seamless and super comfy.
La classique
Malheureusement, la doublure intérieure a décollé au premier lavage, très décevant
Smooth and seamless
Very smooth, seamless, with perfect stretch and a slightly cheeky look. Great panty. Tried one, loved it, back for more.
Bien
Vie
très beau, mais fait petit
très beau, mais fait petit
Low quality
Pretty but smaller fit. Fell apart after first use
Fell apart 1st wear
I bought enough of these to last me a couple weeks for a vacation with no laundry access. I pre washed according to directions, and each pair fell apart while wearing (first wear!). The gusset detached from the front on every single pair. I ended up throwing each pair out at the end of the day. Awfully expensive for single uses do not recommend.
Bikini parfait
Cette culotte est parfaite confortable ne laisse pas de marque !
defaut de couture
Je suis déçu de ces culottes : la bande du fond n'était pas cousue, très inconfortable. Sur cinq culottes, 3 étaient en défaut,. Non, je ne recommande pas
Beau tissu
Offert enncadeau
Léger et confortable
Couleur parfaite pour ne pas paraître avec des pantalons beiges. Très confortable. Je n’ai eu aucun problème avec la doublure. Fait un peu serré que les autres modèles, mais plus confortable.
Super
composition de tissus confortable
Très bien
J’ai du les retourner
Classique coupee laser neutre Ny’on
Super confortable mais doublure de la culotte s’est toute détacher après un lavage seulement.
Not what they used to be
These underwear have been my go-to for years, but the ones I just purchased came apart after two washes (the liner has unstuck). I won’t be buying them anymore.
Correct
Correct
Très bien
Bonne qualité
Laser cut bikin
Pretty but does not come in hipster or boy shorts. Bikini is cut too narrow for me.
Reddit Insights
1 threads · r/FrugalFemaleFashionCAMiiyu underwear from Simon's is briefly endorsed as a quality, affordable, and attractive option.
The single mention is favorable, with one user loving the line and another finding the price decent and the designs pretty.
Themes
Source Threads
User recommends 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 →