Le 31
Microfibre Brief Retransformed Polyester
The Le 31 by Simons Microfibre Brief is a men's undergarment constructed from soft microfibre made from a retransformed polyester blend. It includes a double-layered front for support and a textured waistband designed to remain in place. This classic brief offers a smooth fabric finish with a contoured front pouch.
Color
Size
Specifications
- Material
- 85% reprocessed polyester, 15% spandex
- Gender
- male
- Age Group
- adult
- Condition
- new
Product Insights
Le 31's Microfibre Brief offers a sustainable choice with 85% reprocessed polyester, reducing CO2 emissions by 30-60% and energy use, while providing a smooth, stretchy fit with a no-slip waistband and double-layer front for light support and modesty under trousers, at $20—$3-8 less than comparable BN3TH and MNTD briefs—but it is limited to low-impact activities and feels warmer due to reduced breathability compared to natural fibers.
Verified claims
- Environmental savings
- 85% reprocessed polyester: zero crude oil, 30-60% less CO2, 45-85% less energy vs virgin.
- Care
- Machine wash cold, tumble dry low prevents pilling and shape loss, extending the brief’s life.
- Price comparison
- At $20, Le 31 costs $3-8 less than comparable BN3TH and MNTD briefs.
- Construction
- No-slip waistband and double-layer front match BN3TH's premium construction.
- Modesty
- Prevents visible show-through with light-colored microfibre.
- Support
- Light support for low-impact activities; not for high-impact sports.
- Moisture management
- Wicks moisture, reduces friction, and improves breathability for drier comfort.
- Lightweight feel
- Double layer is front-only, keeping the brief lightweight overall.
- Waistband
- Textured waistband uses friction to prevent roll, like BN3TH's no-roll band at $20.
- Fabric feel
- Smooth, soft microfibre feel; double-layer front adds thickness and moisture-wicking.
- Stretch
- 15% spandex provides stretch for a comfortable, adaptive fit.
- Breathability
- Less breathable than natural fibers; feels warmer in hot conditions.
- Discreet layering
- Smooth microfibre and double-layer front prevent outlines and show-through under lightweight trousers.
- Sustainability
- 85% reprocessed polyester reduces CO₂ emissions by 30-60% vs. virgin polyester.
- Double-layer front
- Double-layer front provides light support for low-impact activities like walking and stretching.
- Fit performance
- Stretchy fabric, textured waistband, and true sizing keep the brief secure during low-impact activity.
Product record
- Title
- Microfibre Brief Retransformed Polyester
- Brand
- Le 31
- Price
- 20 CAD
- Availability
- In stock
Image Analysis
2 images- 01
Product
Front-on view of a male model wearing plain white briefs with a wide elastic waistband; fabric appears smooth and slightly lustrous. The image shows the briefs' front panel, leg openings, and waistband seams.
- SilhouetteClassic brief silhouette with a high-cut leg opening, contoured front pouch, and a wide straight waistband sitting at the natural waistline.
1 region
x 0.17 · y 0.58 · w 0.66 · h 0.27 (high) - WaistbandWide elastic waistband in the same white color as the briefs with a subtle textured horizontal rib visible across its surface.
1 region
x 0.22 · y 0.56 · w 0.56 · h 0.05 (high) - Front panel constructionVertical center seam runs down the front pouch; two diagonal seams from the pouch to the waistband create paneling on each side.
1 region
x 0.32 · y 0.60 · w 0.36 · h 0.19 (high) - Fabric appearanceSmooth, fine-textured fabric with a slight sheen suggesting a microfibre or synthetic knit surface.
1 region
x 0.24 · y 0.58 · w 0.52 · h 0.22 (medium) - Leg openings finishNarrow, folded edge hem around the leg openings; hem sits flat against the model's upper thighs.
1 region
x 0.20 · y 0.72 · w 0.60 · h 0.09 (high)
Other
Studio shot of a torso-front model cropped above the chin and mid-thigh with even soft lighting on a neutral light gray background.
- View and cropFrontal view of the model cropped at the neck and mid-thigh so only torso, hips, and upper legs are visible.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundEven, neutral light gray backdrop without visible texture or props.
- Lighting and shadowSoft studio lighting producing gentle shadows that emphasize musculature and the garment's contours.
- Visible model partsModel's bare torso, abdomen, hips, and both arms are visible; hands are relaxed at the sides with fingers visible.
1 region
x 0.05 · y 0.04 · w 0.90 · h 0.92 (high)
Colors
bright white· brief bodybright white· waistband- SilhouetteClassic brief silhouette with a high-cut leg opening, contoured front pouch, and a wide straight waistband sitting at the natural waistline.
- 02
Product
Rear view of a male brief on a model showing full rear coverage white microfibre brief with elastic waistband and curved leg openings.
- Silhouette and cutFull-coverage brief cut shown from rear with high-rise waistband and curved leg openings that extend down the upper thighs.
1 region
x 0.20 · y 0.52 · w 0.60 · h 0.36 (high) - WaistbandSingle-piece elastic waistband about a narrow band width, horizontally straight across the lower back with smooth finish.
1 region
x 0.20 · y 0.49 · w 0.60 · h 0.06 (high) - Fabric surfaceSmooth, matte microfibre appearance with minimal visible texture and no printed patterns.
1 region
x 0.28 · y 0.58 · w 0.44 · h 0.24 (high) - Leg seam finishNarrow, stitched seam following the curved edge of each leg opening, visible as a subtle contour line.
1 region
x 0.22 · y 0.68 · w 0.56 · h 0.18 (high) - Center-back stitchingSlight vertical seam or contour at the center back of the brief at the lower spine area.
1 region
x 0.46 · y 0.62 · w 0.08 · h 0.18 (medium) - Emboss or small marking on waistbandFaint, small raised or embossed mark at the center of the waistband; not fully legible in this image.Partial
1 region
x 0.47 · y 0.49 · w 0.06 · h 0.04 (low)
Other
Studio rear-shot of a model against a neutral light grey gradient background, centered composition with even soft lighting and minimal shadows.
- Shot compositionCentered rear view of a standing male model cropped from the base of the neck to the upper thighs; product positioned at image lower center.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Background and lightingSmooth light grey gradient background with soft, even studio lighting producing minimal harsh shadows and subtle highlights on skin and fabric.
- Model presencePhotographed on a live model showing natural skin tones and musculature; hands visible at sides and head cropped at upper edge.
1 region
x 0.12 · y 0.04 · w 0.76 · h 0.92 (high) - Image qualityHigh-resolution studio image with sharp focus on product area and minimal visible noise.
Colors
white· brief body#F1F1F2white· waistband- Silhouette and cutFull-coverage brief cut shown from rear with high-rise waistband and curved leg openings that extend down the upper thighs.
Documents & Data
Customer Reviews
8 total8 reviews · out of 5
oui je le recommande
oui je le recommande
Great underwear
Very comfortable. Look great.
Confort idéal
Taille juste, confort idéal. On ne les sent pas du tout. Ils n'ont pas bougé de la journée (marche + position assise au bureau).
Mon chum les aime.
Mon chum les aime.
Caleçon
Bien ajusté.
Nice light brief
Nice light material with moisture wicking properties. They run a tad small but still fit and aren’t too tight. Great colourways.
Comfort
Tissu
Tissus de bonne qualité
Tissus de bonne qualité