
Le 31
3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton
These 3-inch inseam men's trunks by Le 31 by Simons are crafted from a soft, stretch jersey blend of 47% organic cotton, 47% TENCEL™ modal, and 6% spandex. Designed for everyday wear, they feature an elastic waistband and a double-layered front for added coverage and support. According to customer reviews, the trunks fit true to size.
- Color
- Neutral-Hued
- Material
- organic cotton and TENCEL modal
- Gender
- male
- Style
- casual, loungewear, minimal
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Specifications
Soft stretch trunk underwear made from a blend of organic cotton and TENCEL modal, featuring an elastic waistband and double layered front.
Soft, stretch jersey; elastic waistband; double layered at front; 3-inch inseam.
- Color
- Neutral-Hued
- Material
- organic cotton and TENCEL modal
- Secondary
- tencel
- Style
- casual, loungewear, minimal
- Occasion
- everyday, loungewear
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- soft stretch jersey fabric
- organic cotton and TENCEL modal blend
- elastic waistband
- double layered front
- 3-inch inseam
- neutral-hued color
- trunk cut
- stretch construction
Product Insights
A 3-inch stretch trunk from Le 31 at 20 CAD, in stock across sixteen color-and-size variants at a single price and a full SMALL-to-X-LARGE run, built on a 47% organic cotton, 47% TENCEL Modal, 6% spandex jersey whose core promise is a silkier, brighter, longer-lived fabric than cotton: the modal half runs about 1 dtex against cotton's 1.5-2.5 for a silkier hand, holds 11-13% moisture regain against cotton's 7-8% to release skin moisture faster, dyes a cleaner tone-in-tone shade, and washes softer and more shade-true where cotton dulls after roughly 25 cycles, while the 6% spandex governs recovery so the waistband and leg hems snap back after a full day; a doubled front in the same jersey adds show-through coverage on the palest colorways and washes as one fabric. The fiber is authenticated by an embedded molecular marker as genuine branded TENCEL rather than generic modal, sourced from FSC- or PEFC-controlled wood with Lenzing holding Canopy's Dark Green Shirt, made with at least 50% less carbon and water than generic modal, paired with organic cotton whose farming cuts global-warming emissions 46% versus conventional, and carrying TÜV-certified biodegradability. The color story is four colorways spanning four distinct undertone families, purple grey, ivory/cream beige, hazelnut and mossy green, not four depths of one neutral. The tradeoffs are explicit: buyers report the elastic waistband is the one uncomfortable spot on an otherwise soft trunk even though it stretches about 70% and springs back; the actual color reads duller than in the product photos; the modal is a modified viscose process, not lyocell; the certified biodegradability stops at the fiber, since the 6% spandex leaves the trunk not fully compostable; and tumble drying is acceptable only on low heat, with low heat or air drying needed to limit shrinkage. Rated 3.8 of 5 from four reviews.
Verified claims
- Waistband fit
- Buyers report the elastic waistband is the one uncomfortable spot on an otherwise soft trunk
- Waistband recovery
- The 6% spandex jersey stretches about 70% across and springs back, keeping the band snug
- Color fidelity
- A buyer reports the actual colour is duller than in the product photos.
- Undertones
- Purple Grey, Ivory/Cream Beige, Hazelnut and Mossy Green span four distinct undertone families, not four depths of one neutral.
- Dye evenness
- Modal and cotton dye a cleaner, more even tone-in-tone shade than cotton/viscose blends.
- Shade retention
- The modal knit holds its shade and reads brighter through repeated washing, unlike cotton.
- Softness
- The modal half runs about 1 dtex versus cotton's 1.5-2.5, giving the jersey a silkier hand.
- Moisture wicking
- The modal half holds 11-13% moisture regain versus cotton's 7-8%, releasing skin moisture faster.
- Shape retention
- The 6% spandex governs recovery, so the waistband and leg hems snap back after a full day.
- Front construction
- The doubled front uses the same 47/47 modal-cotton jersey as the body, adding coverage.
- Fiber authenticity
- TENCEL Modal fibers carry an embedded molecular marker that authenticates them.
- Environmental impact
- TENCEL Modal is made with at least 50% less carbon and water than generic modal.
- End of life
- The modal content is certified biodegradable; the 6% spandex in the blend is not.
- Variant pricing
- All sixteen colour-and-size variants are priced the same and are in stock.
- Front coverage
- Double-layered front adds show-through coverage on the palest colorways
- Laundry
- The doubled front is the same jersey as the body, washing as one fabric
- Color palette
- Four colorways span four distinct undertones: grey, cream, brown and green.
- Color retention
- The modal blend gets softer and keeps its shade with washing, unlike cotton.
- Care
- Tumble drying is acceptable, but low heat or air drying limits shrinkage.
- Wash aging
- The modal blend washes softer and brighter, where cotton dulls after about 25 cycles.
- TENCEL authenticity
- An embedded molecular marker authenticates the modal as genuine branded TENCEL, not generic modal.
- Wood sourcing
- The modal's wood is FSC- or PEFC-controlled, and Lenzing holds Canopy's Dark Green Shirt.
- Water footprint
- The reduced water footprint comes from the TENCEL modal, not the organic cotton.
- Organic cotton
- Organic cotton farming cuts global-warming emissions 46% versus conventional.
- Certifications
- TENCEL modal is FSC/PEFC-sourced and TÜV-certified biodegradable; the 6% spandex is not.
- Biodegradability
- TENCEL Modal fiber is TÜV-certified biodegradable; at 6% spandex the trunk is not fully compostable.
- Material
- 47% organic cotton, 47% TENCEL Modal and 6% spandex; the modal is a modified viscose process, not lyocell.
- Traceability
- TENCEL Modal fibres carry a molecular marker that lets Lenzing authenticate them.
- Sustainability
- TENCEL Modal is made with at least 50% less carbon and water than generic modal.
Product record
- Title
- 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton
- Brand
- Le 31
- Price
- 20 CAD
- Availability
- In stock
- Rating
- 3.8 stars, 4 reviews, scale 5
Buying Guide
1 comparison · 7 sourcesProduct comparison
Compared within this brand.
| 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton: Choose this if you want a soft, stretchy short trunk with a 3-inch inseam, made from 47% organic cotton, 47% TENCEL modal, and 6% spandex, in a fitted low-rise cut with a double-layered front, smooth no-logo exterior, and four neutral colorways from Small to X-Large. One customer review noted the elastic waistband may feel uncomfortably tight, and the actual color can appear duller than in product photos, so factor that in if either matters to you.[1,2] | 3" Colourful Stretch Jersey Trunk Tencel™ Modal & Organic Cotton: Choose this if you want a soft, stretchy trunk made of 47% organic cotton, 47% TENCEL™ modal, and 6% spandex, with a low-rise silhouette, a 3 inch inseam, and a wide white elastic waistband that sits below the navel. It suits shoppers who prefer a plain, single-color look, available in Green, Blue, and Red in sizes Small through Large, though the variant data lists X-Large only for the Red colorway.[3,4,5] | 2.5" Striped-Band Trunk Tencel™ Modal & Organic Cotton: Choose this if you want a soft, stretchy everyday trunk in an organic cotton and TENCEL modal blend: reviewers report all-day comfort at the office and relaxed lounging, with a stay-put wide waistband and a 2.5 inch inseam on a low-rise cut. It suits shoppers drawn to more sustainable materials, though some report noticeable shrinkage after washing and suggest sizing up, and the cotton blend can trap heat during high-intensity workouts while a few note durability may be a trade-off.[6,7] |
Image Analysis
2 images- 01

Product
Front view of a male model wearing dark neutral-hued stretch trunks; visible features include a smooth knit body, elastic waistband with subtle ribbed texture, vertical front fly seam, and short boxer-trunk legs with hem stitching.
- Overall silhouetteMale torso and upper thighs wearing fitted trunk underwear showing the garment front and upper leg coverage to mid-thigh; waistband sits at natural waist.
1 region
x 0.08 · y 0.30 · w 0.84 · h 0.58 (high) - Main fabricSmooth, fine-knit fabric with a matte finish and no visible pattern; fabric appears slightly stretchy and conforms to body shape.
1 region
x 0.10 · y 0.48 · w 0.80 · h 0.30 (high) - WaistbandElastic waistband in a matching darker shade with a subtle diagonal ribbed texture around its surface; waistband is approximately uniform height across front.
1 region
x 0.12 · y 0.39 · w 0.76 · h 0.07 (high) - Front fly and panel seamsVertical center front seam creating a contoured fly panel, plus visible vertical stitching lines on either side of the center seam forming front panels.
1 region
x 0.32 · y 0.46 · w 0.36 · h 0.33 (high) - Leg hemsStraight hem at each leg opening with visible topstitching; leg length is short, sitting on the upper thigh.
2 regions
x 0.12 · y 0.74 · w 0.33 · h 0.09 (high); x 0.55 · y 0.74 · w 0.33 · h 0.09 (high) - Color toneSolid dark neutral hue with a muted purple/charcoal appearance across the garment.
1 region
x 0.10 · y 0.44 · w 0.80 · h 0.36 (high)
Other
Studio product shot showing a cropped male model against a plain light background with soft directional lighting from the left producing a shadow on the right; image is cropped above the mouth and below mid-thigh.
- Model pose and cropModel stands with arms crossed over chest; image is cropped above the model nose and includes torso and upper legs only.
1 region
x 0.00 · y 0.00 · w 1.00 · h 0.60 (high) - BackgroundPlain light neutral background, slightly darker shadow falloff to the right of the model.
1 region
x 0.62 · y 0.10 · w 0.36 · h 0.80 (high) - Lighting and shadowSoft, even studio lighting from the left producing a soft shadow cast to the right of the model on the background.
Colors
muted dark plum· main fabricdark charcoal plum· waistband#462919- Overall silhouetteMale torso and upper thighs wearing fitted trunk underwear showing the garment front and upper leg coverage to mid-thigh; waistband sits at natural waist.
- 02

Product
Rear view of a pair of men's stretch trunks worn by a model. Smooth knit fabric, low-rise elastic waistband, single-panel rear with visible side seam and narrow leg hems.
- View and fitRear on-body view showing low-rise trunk silhouette sitting below the natural waist on the model
1 region
x 0.12 · y 0.42 · w 0.76 · h 0.52 (high) - WaistbandElastic waistband about 1.5 to 2 cm tall with a subtly ribbed diagonal texture and slightly darker shade than the trunk body
1 region
x 0.18 · y 0.48 · w 0.64 · h 0.08 (high) - Rear panel and seamsSingle rear panel with a vertical side seam visible on the right hip; no visible center back seam or decorative stitching
1 region
x 0.28 · y 0.56 · w 0.44 · h 0.33 (high) - Fabric appearanceSmooth, fine knit fabric with a soft matte finish and slight sheen where lit; fabric pulls smoothly over form without visible texture
1 region
x 0.20 · y 0.56 · w 0.60 · h 0.30 (high) - Leg openingsNarrow folded hem at each leg opening with neat topstitching visible on the left leg hem
1 region
x 0.20 · y 0.80 · w 0.56 · h 0.12 (high) - Branding absenceNo visible printed or stitched logo or text on the exterior of the visible trunk surfaces
Other
Studio shot of a model against a plain light gray background with even soft lighting; image cropped to show model from upper back to mid-thigh.
- Background and lightingPlain light gray studio background with soft even lighting and minimal shadowing
- Model presenceMale model shown from upper back to mid-thigh, turned slightly to the right; hands and part of face visible
1 region
x 0.08 · y 0.02 · w 0.84 · h 0.98 (medium) - Image framingProduct centered on lower half of frame; top of head cropped and calves out of frame
Colors
muted plum charcoal· trunk body#56495Adeep muted plum· waistband- View and fitRear on-body view showing low-rise trunk silhouette sitting below the natural waist on the model
Variants
16 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4494363 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Purple Grey - Small | CA$19.00 | Yes |
| 4494364 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Purple Grey - Medium | CA$19.00 | Yes |
| 4494365 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Purple Grey - Large | CA$19.00 | Yes |
| 4494366 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Purple Grey - X-Large | CA$19.00 | Yes |
| 4646529 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Ivory/cream Beige - Small | CA$19.00 | Yes |
| 4646530 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Ivory/cream Beige - Medium | CA$19.00 | Yes |
| 4646531 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Ivory/cream Beige - Large | CA$19.00 | Yes |
| 4646532 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Ivory/cream Beige - X-Large | CA$19.00 | Yes |
| 4646533 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Hazelnut - Small | CA$19.00 | Yes |
| 4646534 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Hazelnut - Medium | CA$19.00 | Yes |
| 4646535 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Hazelnut - Large | CA$19.00 | Yes |
| 4646536 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Hazelnut - X-Large | CA$19.00 | Yes |
| 4646537 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Mossy Green - Small | CA$19.00 | Yes |
| 4646538 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Mossy Green - Medium | CA$19.00 | Yes |
| 4646539 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Mossy Green - Large | CA$19.00 | Yes |
| 4646540 | 3" Neutral-Hued Stretch Trunk Tencel™ Modal & Organic Cotton - Mossy Green - X-Large | CA$19.00 | Yes |
Documents & Data
Customer Reviews
4 total4 reviews · out of 5
Reasonable
Material is soft but the actual colour is duller than the ones showing on the picture
Pas encore essayé, arrivé le
Pas encore essayé, arrivé le 2025-11-28
Boxer court
Confortable et joli
Bien
Très beau tissu mais la bande élastique de la taille est vraiment pas confortable