Miiyu
Plain Microfibre Boyshort Recycled Nylon
This product is a plain boyshort panty made from soft, stretch recycled nylon microfibre. It features a high-rise silhouette with full rear coverage, an elasticized stretch waistband, and elasticized leg openings for a secure fit. Designed in Canada under the Miiyu by Simons brand, it is suitable for everyday underwear use.
- Material
- Recycled Nylon
- Gender
- female
- Style
- casual, loungewear
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Size
Specifications
Soft and stretchy recycled nylon boyshorts with a comfortable waistband.
Stretch recycled nylon microfibre, elastic waistband
- Material
- Recycled Nylon
- Style
- casual, loungewear
- Occasion
- everyday
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- soft and stretchy microfibre fabric
- recycled nylon material
- elastic stretch waistband
- boyshort silhouette
- plain solid color
- exclusive Canadian design
Product Insights
This Miiyu boyshort offers full coverage and a no-elastic leg design that prevents wedgies and visible lines, with a true-to-size fit and stretch waistband that stays in place. However, the thin recycled microfibre may appear sheer under light clothing, the color selection is limited to five pastel shades deemed unattractive and lacks black or white, medium sizes are often out of stock, and the $12.99 per pair or ~$8/pair in a 5-pack is significantly higher than mass-market alternatives (~$4.80/pair), with the fabric being thinner than expected for the bundle price.
Verified claims
- No-elastic leg design
- Buyers report no-elastic leg openings prevent wedgies and visible lines under tight clothes.
- Fit
- Buyers say true-to-size fit, stretch waistband, and full coverage keep the underwear in place.
- Care
- Cold wash and line drying preserve the recycled nylon's elasticity for lasting stay-put performance.
- Thinness
- Microfibre is thin and stretchy but may lack opacity under light clothing.
- Color selection
- Five pastel options; no black/white; colors called unattractive.
- Sizing accuracy
- Buyers report medium fits US 8-10 accurately.
- Stock availability
- Buyers report medium sizes often out of stock online and in-store.
- Bundle value
- $12.99/pair or ~$8/pair in the 5-pack, but mass-market competitors sell for ~$4.80/pair.
- Provenance
- Miiyu is a Simons-exclusive brand designed in Canada.
- Fabric
- Buyers report the recycled nylon fabric is thinner than expected at the bundle price.
- Coverage
- Full coverage prevents riding up, ideal for lounging or under skirts.
- Sheerness
- Thin microfibre may appear sheer under light-colored or thin outer layers.
- Competitive value
- 5-pack ~$8 CAD/pair vs Walmart ~$3.50 USD/pair; offset by design and color options.
- Material
- Thin recycled microfibre body; 100% cotton gusset for breathability.
Product record
- Title
- Plain Microfibre Boyshort Recycled Nylon
- Brand
- Miiyu
- Price
- 12.99 CAD
- Availability
- In stock
Deep Research
Washing and care for long-lasting shape
- Placing the boyshorts in a mesh laundry bag during a gentle cycle shields the fine microfibre surface from the abrasion of zippers and rougher fabrics that cause pilling, helping them look smooth and new for more wears.
- A 30°C (cold/lukewarm) machine wash on the delicate cycle with a neutral detergent protects the recycled nylon's elasticity and prevents the heat-related shrinkage or deformation that hotter water can cause, so the boyshorts hold their shape and supportive fit after many wears.
- Skipping fabric softener prevents the residue that clings to microfibre yarns from blocking the fabric's moisture-wicking pathways, so the boyshorts stay breathable and dry against the skin rather than trapping sweat and losing their light, airy feel.
- Line drying in the shade, rather than machine drying, keeps the synthetic fibers from warping under high heat — which recycled nylon is particularly vulnerable to — so the boyshorts maintain their original silhouette and the stretch waistband doesn't lose its recovery power.
- A mild liquid detergent free of bleach and enzymes preserves the softness and even color of recycled nylon — strong alkaline detergents can break down the polymer chains, causing the fabric to lose its stretch and sheen over time.
- Washing these boyshorts in a microplastic-filtering bag like Guppyfriend captures the tiny synthetic fibers shed during laundering, a simple step that aligns with the eco-conscious intention of buying recycled nylon and keeps your laundry routine more sustainable without extra effort.
Value against other budget eco-friendly underwear
- Miiyu is owned and designed in Canada by department store Simons, putting it in the small class of private-label underwear that can offer a local-design story at mass-market prices — for shoppers who value domestic design, that adds a layer of meaning absent from global generic competitors.
- At ~$3.50 USD per pair, Walmart's Kindly Yours recycled nylon hipster drastically undercuts Miiyu's effective price, but the Miiyu boyshort offers a Simons-exclusive design and the ability to select individual colors, while Kindly Yours delivers a pre-packed 4-count with no color choice.
- Listed at $12.99 individually, the true entry price is roughly $8 per pair when purchased through the 5-for-39.95 promotion — the individual MSRP functions as a decoy that makes the multi-buy feel like a sharper value, so the product only makes financial sense as part of the bundle.
Boyshort coverage and panty line visibility
- The boyshort designation means the fabric extends further down the thigh and across the rear than a brief or bikini, giving full seat coverage and a modest leg line that many choose for loungewear, under skirts, or as a sleep-short alternative when a bit more coverage is desired.
Image Analysis
2 images- 01
Product
Flat-lay front view of a single high-rise boyshort panty in a uniform pale blue microfibre fabric; visible elasticized leg and waist openings and a reinforced central gusset panel with topstitching.
- SilhouetteHigh-rise boyshort silhouette with a straight high waistline and full coverage rear area visible from the front; leg openings are low-cut curves toward the hips.
1 region
x 0.06 · y 0.18 · w 0.88 · h 0.62 (high) - Material appearanceSmooth, slightly shiny microfibre fabric with a uniform fine texture and no visible pattern.
1 region
x 0.14 · y 0.22 · w 0.72 · h 0.48 (medium) - Waist finishingNarrow elasticized waist hem with a single line of visible topstitching along the top edge.
1 region
x 0.09 · y 0.19 · w 0.82 · h 0.06 (high) - Leg openings and trimLeg openings finished with narrow elasticized hems and visible topstitching that follows the curved openings.
1 region
x 0.08 · y 0.62 · w 0.84 · h 0.28 (high) - Gusset panelCentral lower gusset panel with contoured seam lines and double topstitch reinforcement visible at the front center.
1 region
x 0.38 · y 0.62 · w 0.24 · h 0.18 (high) - Seam constructionVisible overlock or coverstitch seams along side seams and panel joins with matching thread color.
1 region
x 0.07 · y 0.28 · w 0.86 · h 0.46 (medium)
Other
Studio flat-lay product photo on a neutral light gray background with even diffuse lighting and a soft shadow beneath the product; image is centered and cropped to show the entire garment.
- Shot compositionTop-down flat-lay composition with the product centered and occupying the middle third of the frame.
- BackgroundUniform light gray background with no props or packaging visible.
- Lighting and shadowEven, diffuse studio lighting with a faint soft shadow under the lower edge of the garment.
Colors
pale baby blue· main body#A4C5FC- SilhouetteHigh-rise boyshort silhouette with a straight high waistline and full coverage rear area visible from the front; leg openings are low-cut curves toward the hips.
- 02
Product
Flat-laid high-rise boyshort with continuous single-panel front, smooth microfibre surface, finished with narrow stitched elastic at waistband and leg openings, shown from the front or rear on a neutral background.
- Main body shapeRectangular high-rise boyshort silhouette with a straight waistband and gently curved leg openings forming a full-coverage brief shape.
1 region
x 0.06 · y 0.15 · w 0.88 · h 0.62 (high) - Fabric appearanceSmooth, fine-grain microfibre surface with a uniform matte finish and no visible print or pattern.
1 region
x 0.12 · y 0.22 · w 0.76 · h 0.52 (high) - Waistband finishNarrow folded and stitched waistband with visible straight topstitching along the upper edge.
1 region
x 0.06 · y 0.15 · w 0.88 · h 0.06 (high) - Leg opening finishNarrow turned hem with visible single-line stitching following the curved leg edges on both sides.
2 regions
x 0.06 · y 0.70 · w 0.36 · h 0.18 (high); x 0.58 · y 0.70 · w 0.36 · h 0.18 (high) - Crotch seam detailSmall rectangular reinforced crotch seam panel visible at the center bottom edge with a short vertical seam connecting to the main body.
1 region
x 0.44 · y 0.78 · w 0.12 · h 0.08 (high)
Other
Studio flat-lay on a neutral light-gray background with even diffuse lighting and a soft drop shadow beneath the garment; image is centered and cropped with minimal margins.
- Shot compositionGarment laid flat, centered in frame, photographed from above with full view of the front-facing panel.
- Background and shadowUniform light-gray background with a subtle soft shadow directly below the lower edge of the boyshort indicating a slight separation from the surface.
1 region
x 0.10 · y 0.80 · w 0.80 · h 0.15 (medium) - LightingEven diffuse lighting producing minimal specular highlights and consistent color across the fabric.
Colors
pale periwinkle blue· main fabric#B3CEFC- Main body shapeRectangular high-rise boyshort silhouette with a straight waistband and gently curved leg openings forming a full-coverage brief shape.
Documents & Data
Customer Reviews
10 total10 reviews · out of 5
Douce et confortable
Je les adore! J’aimerais plus de couleurs :)
Loved these but discontinued??
The comfort and fit is great. I like that there is no elastic at the top of the leg -- but then, wanting more, I couldn't find them in the store -- or on-line in my size. Have you discontinued the XL size?
Très confortable
Très confortables et tiennes bien en place. Par contre je trouve que le choix de couleur est un peu moche.
The best
I finally found a nice pair of underwear that doesn’t go up my butt! Thank-you Simons!
J’adorerais
Dommage qu'il n'y a pas de blanc et de noir
Super comfy boy short
Great shape and stretch, and live the rust color. I’m an 8-10 US and medium fits great.
Confortable
Le tissu un peu mince mais très élastique et confortable.
Confort absolu
Vraiment parfait sous un jeans.
Pauvre qualité
Tissu très mince.
Polyamide elastane search
I prefer polyamide elastane for my underwear but am conscious of the environmental impact. So recycled nylon is a happy halfway house. I have tried Tencel but it does not hold its shape. I will always come back to Simon’s
Q&A
2 answered- Are these machine washable and dryer safe?
- We recommend following the care label on the garment. Based on general knowledge of recycled nylon microfibre underwear, it is typically safe to machine wash cold and tumble dry low, but we cannot confirm this specifically without explicit care instructions.
- Is the gusset (crotch liner) made of cotton or the same recycled microfibre?
- The product details do not specify the gusset material for this style. For comparison, another Miiyu boyshort (Lace Accents Satiny Boyshort) has a '100% cotton gusset' [7], but we cannot confirm the same for the Plain Microfibre Boyshort.