
Miiyu
Stretch Microfibre High-Waist Thong Recycled Nylon
This high-waist thong is made from recycled nylon and soft stretch microfibre, with a 100% cotton gusset for comfort. Designed in Canada under the Miiyu by Simons label, it features bonded, seamless edges for a smooth fit. Reddit users have noted it as an affordable, attractive underwear option with positive sentiment regarding quality.
Color
Size
Specifications
- Material
- Gusset: 100% cotton
- Gender
- female
- Age Group
- adult
- Condition
- new
Product Insights
Miiyu's Stretch Microfibre High-Waist Thong is made from recycled nylon sourced from ocean waste, cutting water use by 90% and CO2 emissions by 80% while maintaining tensile strength within 2% of virgin nylon. At $12 CAD (about $7.99 per pair), it undercuts typical eco-collections by half and is 46% cheaper than Elita's comparable thong. The recycled nylon microfibre body feels soft and stretchy, paired with a 100% cotton gusset for breathability—a feature absent in Aerie's SMOOTHEZ. Buyers describe it as pretty and decent, and it requires cold, delicate washing and air drying to maximize longevity.
- Environmental footprint
Recycled nylon cuts water 90% and CO2 80%, sourced from ocean waste.
Why this is supported
Independent research shows that the recycled nylon used in this thong
Recycled nylon uses 90% less water, emits 80% less CO2, and diverts waste from landfills and oceans.
fumaofabric.com. The material is sourced from post-consumer waste like fishing nets.
- Performance parity
Chemically identical to virgin nylon, within 2% tensile strength.
Why this is supported
Lab tests confirm that
the fiber is indistinguishable from virgin
fumaofabric.com, and that
they're within 2% of each other
fumaofabric.comin tensile strength, meaning identical durability and feel.
- Sustainability
At $12 CAD, this thong costs about half the typical $20+ eco-collection price.
Why this is supported
Industry data indicates that recycled nylon underwear typically sells for over $20 per pair. Miiyu's thong is priced at $12 CAD for a single pair, with multi-pack pricing further reducing the per-unit cost to about $7.99, offering substantial savings for eco-conscious shoppers.
- Price per pair
At $7.99 per pair, it's 46% cheaper than Elita's comparable thong.
Why this is supported
At $7.99 per pair (from the 5-for-$39.95 pack), this thong is 46% cheaper per pair than Elita's comparable 3-pack priced at
3 Pack - 'Silk Magic' High Waist Thong $34.99
elita.com, though Elita adds Fresh Guard odor protection. Miiyu achieves this price through its direct-to-consumer model as
Miiyu by Simons: an exclusive designed in Canada
lyst.com. Compared to Aerie's SMOOTHEZ thong,
SMOOTHEZ No Show Thong Underwear $5.99 $8.95 Buy 10 for $35 (Save $54)
ae.com, Miiyu's is more expensive per pair but offers a high-waist design, recycled nylon, and a cotton gusset. Quince's organic cotton thong 6-pack is similarly priced at
$45.00
quince.com, but uses cotton instead of microfibre. Reddit users confirm the value:
Thank you! I was wondering if Miiyu was good, 5 for $28 is decent. (and they are so pretty!)
u/Greenteapls in r/FrugalFemaleFashionCA.
- Materials
Recycled nylon microfibre body with 100% cotton gusset.
Why this is supported
The main fabric is recycled nylon microfibre, as listed:
Miiyu - Stretch microfibre high-waist thong Recycled nylon
lyst.com. The gusset is
100% cotton gusset
lyst.com, a rarity at this price. The recycled nylon used is virtually identical to virgin nylon:
, and
the 100% cotton gusset adds breathability for all-day wear
Is the microfibre fabric breathable enough for all-day wear, or does it trap moisture?. Environmentally,
Recycled nylon uses 90% less water, emits 80% less CO2, and diverts waste from landfills and oceans.
fumaofabric.com. To preserve the fabric, care recommendations include
Using a laundry bag for delicate nylon pieces is also a good idea, since it reduces snagging.
ukfabricsonline.com,
The safest way of drying nylon fabric is, quite simply, to let it air dry.
ukfabricsonline.comKeep the water temperature cold to lukewarm (no more than 30°C/86°F).
underweariq.com.
Buyer feedback confirms that
The microfibre is soft and stretchy, and the 100% cotton gusset adds breathability for all-day wear.
Is the microfibre fabric breathable enough for all-day wear, or does it trap moisture?Another buyer notes that
While microfibre can sometimes trap moisture, the cotton gusset helps wick moisture away.
Is the microfibre fabric breathable enough for all-day wear, or does it trap moisture?These testimonials confirm that the cotton gusset effectively counters moisture trapping for all-day comfort.
- Care routine
Wash cold on delicate in a mesh bag and air dry to maximize longevity.
Why this is supported
Washing in cold water preserves nylon elasticity and shape.
Keep the water temperature cold to lukewarm (no more than 30°C/86°F).
underweariq.comFor the most fiber-preserving method, hand washing is recommended:
Hand washing is the safest method for nylon underwear, especially if you want to preserve elasticity and shape.
underweariq.comWhether hand washing or machine washing, using a fine-mesh laundry bag protects the microfibre from snagging:
Using a laundry bag for delicate nylon pieces is also a good idea, since it reduces snagging.
ukfabricsonline.comAfter washing, air drying is critical:
The safest way of drying nylon fabric is, quite simply, to let it air dry.
ukfabricsonline.comThe recycled nylon used in this thong is chemically identical to virgin nylon, so these care instructions apply without modification:
the fiber is indistinguishable from virgin.
fumaofabric.com- Value
At about $7.99/pair, few thongs include a cotton gusset.
Why this is supported
At the multi-pack price point of about $7.99 per pair, the inclusion of a 100% cotton gusset is an uncommon feature in similarly priced synthetic thongs, according to competitive analysis.
- Competitive compare
Cotton gusset provides breathability that Aerie's SMOOTHEZ lacks.
Why this is supported
Compared to Aerie's SMOOTHEZ,
the SMOOTHEZ is a low-rise, seamless no-show thong in virgin polyester/nylon without a cotton gusset
How the 5 for $39.95 deal compares to other thong packs — smoothez_no_show_thong_aeriewhereas the Miiyu thong specifically incorporates a cotton gusset for breathability.
- Eco-friendly
Recycled nylon body with cotton gusset reduces environmental footprint.
Why this is supported
The body fabric is recycled nylon, which
Recycled nylon uses 90% less water, emits 80% less CO2
fumaofabric.comcompared to virgin nylon. This is combined with a 100% cotton gusset, as buyer feedback confirms the combination supports all-day comfort.
- Consumer reception
Buyers describe Miiyu thongs as pretty and decent, backed by the Simons exclusive brand.
Why this is supported
Early adopters on Reddit describe the underwear as
decent
u/Greenteapls in r/FrugalFemaleFashionCAand
pretty
u/Greenteapls in r/FrugalFemaleFashionCA. In Q&A responses, reviews are described as
generally positive
Is the microfibre fabric breathable enough for all-day wear, or does it trap moisture?. The brand's exclusive house status (
Miiyu by Simons: an exclusive designed in Canada
lyst.com) further reinforces a quality perception.
- Material quality
Recycled nylon microfibre feels soft and stretchy; the cotton gusset adds breathability.
Why this is supported
Laboratory testing confirms that the recycled nylon fiber is
indistinguishable from virgin
fumaofabric.com, providing the same soft stretchy feel. In addition, the cotton gusset is described as
adds breathability for all-day wear
Is the microfibre fabric breathable enough for all-day wear, or does it trap moisture?. A separate analysis calls the cotton gusset a
meaningful comfort detail
How the 5 for $39.95 deal compares to other thong packs — 100_cotton_gusset.
Image Analysis
2 images- 01

Product
Flat-lay front view of a high-waist thong displayed centered on a light background. Smooth, seamless-looking navy fabric with a wide waistband and a narrow triangular crotch panel.
- Overall shapeHigh-waist thong laid flat with a very wide horizontal waistband that narrows into a centered triangular crotch panel; the leg openings curve from the waistband into the thong cut.
1 region
x 0.05 · y 0.12 · w 0.90 · h 0.70 (high) - WaistbandWide, straight top band with a continuous smooth edge and no visible folded hem or elastic stitching on the visible face.
1 region
x 0.06 · y 0.12 · w 0.89 · h 0.18 (high) - Crotch panelNarrow triangular crotch section centered at the bottom of the garment with straight lower edge and smooth surface consistent with the rest of the fabric.
1 region
x 0.43 · y 0.62 · w 0.13 · h 0.20 (high) - Fabric appearanceUniform, finely textured knit or microfibre surface with a matte finish and no visible pattern or lace.
1 region
x 0.20 · y 0.20 · w 0.60 · h 0.56 (high) - Edge constructionLeg and waistband edges appear bonded or laser-cut with no visible overlocked stitching or folded hems on the visible face.
1 region
x 0.06 · y 0.12 · w 0.88 · h 0.70 (medium) - Color uniformitySingle solid dark navy color across the entire garment with slight tonal variation due to lighting.
1 region
x 0.05 · y 0.12 · w 0.90 · h 0.70 (high)
Other
Studio flat-lay photograph with even diffuse lighting on a pale gray background and a faint soft shadow beneath the garment.
- Background and stagingProduct photographed flat on a smooth pale gray background with the garment centered and fully visible.
- Lighting and shadowEven, diffuse lighting with a subtle soft shadow below the lower edges of the garment indicating overhead light.
- Image framingGarment centered with modest margins on all sides and no visible props, tags, or model.
Colors
dark navy· body#1E2D41- Overall shapeHigh-waist thong laid flat with a very wide horizontal waistband that narrows into a centered triangular crotch panel; the leg openings curve from the waistband into the thong cut.
- 02

Product
Flat-lay rear view of a high-waist thong in a deep navy microfibre fabric showing smooth seamless edges, a central vertical seam, curved leg openings, and a triangular gusset panel with a darker inner lining.
- SilhouetteHigh-waist thong laid flat showing full rear silhouette with a wide waistband and a narrow triangular lower back panel.
1 region
x 0.05 · y 0.18 · w 0.90 · h 0.60 (high) - WaistbandWide straight waistband with clean cut top edge and no visible elastic banding or decorative trim.
1 region
x 0.06 · y 0.18 · w 0.88 · h 0.16 (high) - Central seamSingle vertical seam running from the center of the waistband down to the gusset, visible as a narrow stitched line.
1 region
x 0.49 · y 0.18 · w 0.02 · h 0.48 (high) - Leg openingsCurved cut leg openings with a smooth, bonded edge that creates a continuous flat finish without visible hem stitching.
1 region
x 0.09 · y 0.30 · w 0.82 · h 0.38 (high) - Gusset panelTriangular gusset extension at the bottom-center with a short horizontal seam where it meets the main body; gusset shows a slightly darker inner lining visible at its sides.
3 regions
x 0.42 · y 0.60 · w 0.16 · h 0.20 (high); x 0.31 · y 0.62 · w 0.12 · h 0.10 (medium); x 0.57 · y 0.62 · w 0.12 · h 0.10 (medium) - Fabric appearanceSmooth, matte microfibre surface with uniform texture and no visible pattern or knit; fabric lies flat without puckering.
1 region
x 0.10 · y 0.22 · w 0.80 · h 0.55 (high) - Edge finishAll visible edges appear bonded or cut cleanly with no folded hem or visible topstitching along the waistband and leg openings.
1 region
x 0.06 · y 0.18 · w 0.88 · h 0.60 (high)
Other
Product photographed flat on a uniform light grey background with centered composition and soft even lighting that produces minimal shadows.
- BackgroundUniform light grey background filling the frame with no textures or props.
- Shot compositionFlat-lay, top-down view with the garment centered horizontally and vertically in the image.
- Lighting and shadowSoft, even lighting with a faint diffuse shadow beneath the lower gusset area and minimal specular highlights on the fabric.
1 region
x 0.40 · y 0.68 · w 0.20 · h 0.12 (medium) - Image qualitySharp focus across the product with clear edges and visible stitch detail on the central seam; no noticeable compression artifacts.
Colors
deep navy blue· main fabric#253449dark navy· gusset inner lining#1D243A- SilhouetteHigh-waist thong laid flat showing full rear silhouette with a wide waistband and a narrow triangular lower back panel.
Documents & Data
Customer Reviews
5 total5 reviews · out of 5
Comfortable
Ce sous vêtement est exactement ce que je cherchais. Confortable et élégant et le tissu est parfait.
Who decided on that seam placement?
At first blush, these seem great: lightweight, undetectable under clothes, and stretchy. But after just a few hours' wear, you'll realize the seam down the back is really irritating and by the end of the day, there's no stretch left. I wanted to love them, but nope.
Thong panties
I haven’t worn them yet. But these blue ones are okay for fit, the other ones exactly the same different color seem smaller
Parfait
J’adore
Pas assez de soutien
J'aime pas
Reddit Insights
1 threads · r/FrugalFemaleFashionCAReddit users mention the Miiyu underwear line as an affordable and pretty option, with one user expressing love for the brand.
Both available comments convey positive or curious interest; one user loves the line, and another notes the underwear is pretty and reasonably priced.
Themes
Source Threads
User inquires about Miiyu quality, noting affordable price and attractive appearance
Thank you! I was wondering if Miiyu was good, 5 for $28 is decent. (and they are so pretty!)
u/Greenteaplsr/FrugalFemaleFashionCAView thread →