
Le 31
3" Striped Breathable Trunk Lenzing™ Ecovero™ Viscose
This 3-inch inseam trunk from Le 31 by Simons is a men's underwear style designed in Canada. It is made from a soft and fluid LENZING™ ECOVERO™ viscose-blend jersey with an elastic waistband, a double-layered front panel, and a low-rise fit featuring horizontal navy and teal stripes. The breathable fabric and 3-inch inseam make it suitable for everyday wear.
- Material
- Lenzing™ Ecovero™ viscose blend
- Gender
- male
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Size
Specifications
Soft and breathable striped trunk with 3-inch inseam, elastic waistband, and double layered front, made from Lenzing™ Ecovero™ viscose blend.
Breathable, soft viscose-blend jersey; elastic waistband; double layered front for support; 3-inch inseam.
- Material
- Lenzing™ Ecovero™ viscose blend
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- 3-inch inseam
- Striped pattern
- Breathable fabric
- Soft and fluid Lenzing™ Ecovero™ viscose-blend jersey
- Elastic waistband
- Double layered front panel
- Exclusive design from Le 31 by Simons
- Designed in Canada
Product Insights
Le 31's 3" Striped Breathable Trunk offers sustainable softness in 92% Lenzing Ecovero viscose with EU Ecolabel certification at $20 CAD, undercutting competitors by 20-50%. The double-layered front prevents show-through and resists shape distortion, but moisture absorption like cotton rather than active wicking and a reported limited lifespan are tradeoffs for its airy feel and warm-weather breathability. Cold wash and air drying maintain fit and elastic durability.
Verified claims
- Sustainability credentials
- EU Ecolabel-certified viscose with at least 50% lower water use and 50% lower greenhouse gas emissions than generic viscose.
- Durability
- Double-layered front resists bagging; cold washing and low-heat drying help prevent shrinkage; a buyer reports limited lifespan.
- Moisture management
- Lenzing Ecovero absorbs moisture like cotton rather than actively wicking.
- Breathability
- Air passes through easily, providing warm-weather comfort via absorption.
- Softness
- Fibers deliver a soft, airy feel with durable drape, confirmed by testing and reviews.
- Modesty
- Double front layer prevents show-through when fabric stretches.
- Support
- Double front layer reduces cling and maintains shape through washes.
- Longevity
- Soft fabric is comfortable but not long-lasting
- Care
- Cold washing and air drying help prevent shrinkage and elastic wear.
- Value
- This house-brand trunk at $20 CAD undercuts sustainable competitors by 20-50%.
- Eco certifications
- Ecovero is EU Ecolabel-certified, FSC/PEFC-sourced, molecularly traceable, and TÜV Austria certified biodegradable in soil, freshwater, and marine conditions.
- Sizing
- Buyers report true-to-size fit.
- Fabric feel
- 92% Lenzing Ecovero viscose, 8% spandex blend stays soft and non-clinging.
- Elastic waistband durability
- The elastic waistband generally retains its shape through repeated washing when washed in cold water and air dried.
Product record
- Title
- 3" Striped Breathable Trunk Lenzing™ Ecovero™ Viscose
- Brand
- Le 31
- Price
- 20 CAD
- Availability
- In stock
Image Analysis
2 images- 01

Product
Front-facing male trunk underwear visible on a model; low-rise trunk with continuous narrow horizontal stripes, integrated waistband, center-front pouch seam, and smooth knit fabric.
- View and fitFront view of a low-rise trunk worn on a male model, sitting on the hips with waistband approximately at the lower abdomen.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.34 (high) - Stripe patternContinuous narrow horizontal stripes running across the entire trunk body including waistband; stripes are closely spaced and consistent in width.
1 region
x 0.12 · y 0.62 · w 0.76 · h 0.26 (high) - WaistbandIntegrated fabric waistband without visible separate elastic band or printed logo; waistband shows same stripe pattern as trunk body.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.06 (high) - Front constructionVertical center-front seam forming a contoured pouch; single visible seam line down the front center.
1 region
x 0.40 · y 0.64 · w 0.20 · h 0.20 (high) - Fabric appearanceSmooth, fine-knit fabric with a matte finish and slight stretch evident from close fit against the body.
1 region
x 0.20 · y 0.60 · w 0.60 · h 0.30 (high) - Leg openingsShort trunk leg length with straight cut leg openings finished flush with the fabric, no visible elastic cuff.
1 region
x 0.18 · y 0.80 · w 0.64 · h 0.08 (high) - No visible brandingNo printed or sewn brand logo visible on the exterior of the trunk in this image.
Other
Studio shot showing a cropped male torso against a light neutral background with soft even lighting and subtle shadow on the right; model has visible tattoos which are not part of the product.
- Model presenceMale model shown from chin to upper thighs with arms placed behind the back; torso and tattoos are visible and partly frame the product.
1 region
x 0.06 · y 0.03 · w 0.88 · h 0.66 (high) - Background and lightingEven studio lighting on a plain light grey background with a soft shadow cast to the right of the subject.
- Image crop and framingImage cropped above the model's mouth and at mid-thigh; product centered horizontally in the frame.
Colors
dark navy· main stripe color - dark stripes#2C3B4Cteal aqua· accent stripe color - lighter stripes- View and fitFront view of a low-rise trunk worn on a male model, sitting on the hips with waistband approximately at the lower abdomen.
- 02

Product
Rear view of a pair of short striped trunks worn by a male model; trunks show tight horizontal stripes, a narrow elastic waistband, and a short leg length ending at the upper thigh.
- Overall shapeLow-rise short trunk silhouette with a straight horizontal waistband and short legs that end at the upper thigh across the rear.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.27 (high) - Striped knit fabricFabric covered in very narrow horizontal stripes running continuously around the trunk rear; stripe lines are tightly spaced and parallel to the waistband.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.27 (high) - WaistbandNarrow elasticized waistband matching the striped pattern with no visible separate logo or contrasting band.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.05 (high) - Leg hemClean folded hem at the leg openings with no visible raw edge or decorative trim.
1 region
x 0.12 · y 0.78 · w 0.76 · h 0.04 (high) - Side seamSubtle vertical side seam visible on the right rear hip area, aligned with stripe pattern.
1 region
x 0.76 · y 0.61 · w 0.06 · h 0.20 (medium)
Other
Studio shot of a shirtless male model photographed from behind against a light neutral background; visible tattoos on upper back, arms, and neck; soft shadow cast on the wall to the right.
- Model pose and framingMale model shown from the rear with torso slightly turned to the right, left hand resting near hip; image cropped above the knees and near the top of the head.
- Tattoos visibleMultiple black-ink tattoos on the model including neck, upper back, both upper arms, and right forearm.
2 regions
x 0.36 · y 0.03 · w 0.28 · h 0.16 (medium); x 0.66 · y 0.14 · w 0.20 · h 0.40 (high) - Background and lightingPlain light gray background with a soft shadow to the right of the model indicating a directional light source from the left-front.
- Image qualitySharp focus on product area and model skin; no visible motion blur or compression artifacts.
Colors
navy and teal narrow stripes· striped fabric#141B23teal blue· stripe highlight- Overall shapeLow-rise short trunk silhouette with a straight horizontal waistband and short legs that end at the upper thigh across the rear.
Documents & Data
Customer Reviews
11 total11 reviews · out of 5
Très satisfait
Très satisfait
Tissu très doux.
Tissu très doux.
Bon confort!
Belle qualité, bonne coupe.
Parfait
Bonne qualité bonne grandeur. Je vais racheter
Confortable
Confortable
Moule bien le sac
Moule bien le sac
boxeur
doux
Super
Super
coupe et tissu
coupe et tissu
Comfortable but cheap fabric
Won't last long, but will be nice while they do.
feels nice, material is soft
feels nice, material is soft and stretchy.