
Le 31
3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton
This is a men's trunk-style underwear from Le 31 by Simons, designed in Canada for everyday wear. It is made from a soft stretch jersey blend of organic cotton and TENCEL™ modal in a regular fit, with a double-layered front pouch and a textured waistband that stays in place. The trunk has a 7.5 cm (3 in.) inseam, dark navy leg hem binding, and a narrow horizontal nautical stripe pattern.
- Material
- Organic cotton and TENCEL™ Modal
- Gender
- male
- Style
- casual, classic, nautical
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Specifications
Men's nautical-stripe trunk in a soft organic cotton and TENCEL™ modal stretch jersey with a regular fit.
Soft stretch jersey, regular fit, double-layered front, textured stay-in-place waistband, 3-inch inseam.
- Material
- Organic cotton and TENCEL™ Modal
- Secondary
- modal
- Style
- casual, classic, nautical
- Occasion
- everyday, casual
- 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
- regular fit
- double layered at the front
- textured waistband designed to stay in place
- 3-inch (7.5 cm) inseam
- nautical stripe pattern
- trunk silhouette
- exclusive Le 31 by Simons design
- designed in Canada
Product Insights
47% TENCEL™ modal, 47% organic cotton, 6% spandex Regular fit with 3" inseam; runs true to Le 31 size chart (S 28–30", M 32–34", L 36–38", XL 40–42") Wide textured waistband stays in place and prevents pinching, driving all-day comfort Double-layer front may retain more heat than a single-layer trunk Buyers report the actual stripes read navy blue and white, not as expected from photos Flat 20 CAD across all sizes, with no large-size surcharge
Verified claims
- fit_and_sizing
- Regular fit with 3" inseam; runs true to Le 31 size chart (S 28–30", M 32–34", L 36–38", XL 40–42")
- size_range
- Available in Small, Medium, Large and X-Large; all four sizes in stock at 20 CAD
- colorway
- Patterned Red is the only colourway across the size run
- material_composition
- 47% TENCEL™ modal, 47% organic cotton, 6% spandex
- material_behavior
- TENCEL™ modal supports moisture control and a cool, smooth next-to-skin feel
- durability
- TENCEL™ modal fibers retain softness through repeated washing and drying
- comfort
- Wide textured waistband stays in place and prevents pinching, driving all-day comfort
- fabric_hand_feel
- Modal/cotton blend feels good quality immediately on touch
- construction
- Double-layered front panel adds opacity and a clean line without noticeable bulk
- pouch_design
- Contoured front pouch with vertical center seam and curved lower seam
- leg_design
- Short 3" leg with navy binding at hem helps prevent bunching and riding up
- styling
- Nautical horizontal stripe pattern with contrast white waistband and navy hem binding
- use_cases
- All-day wear, lounging and daily wear against skin
- tradeoffs
- Double-layer front may retain more heat than a single-layer trunk
- value
- Flat 20 CAD across all sizes, with no large-size surcharge
- care
- Machine wash, do not bleach, tumble dry
- origin
- Designed in Canada by Le 31 by Simons
- gender
- Men's
- buyer_reports
- Buyers report the actual stripes read navy blue and white, not as expected from photos
- comparison
- Modal has a smoother, rounder cross-section than lyocell, giving a softer, more fluid hand feel
Product record
- Title
- 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton
- Brand
- Le 31
- Price
- 20 CAD
- Availability
- In stock
- Rating
- 4.13 stars, 8 reviews
Buying Guide
1 comparison · 5 sourcesUses
All-day wear and lounging
A trunk intended for wearing all day or lounging at home, with shoppers crediting the wide waistband for keeping it comfortable and free of pinching through long wear. The merchant also notes the textured waistband stays in place.[1,2]
Everyday wear against the skin
These Le 31 trunks are made for daily wear, cut as a mid-rise trunk with short legs in soft stretch jersey. The blend of organic cotton and TENCEL modal is meant to feel comfortable right against the skin, and reviewer feedback summarized by Simons describes the modal/cotton fabric as good quality for everyday use. Note that this comes from a single reported reviewer impression, not a verified pattern of feedback.[1]
Product comparison
Compared within this brand.
| 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton: Choose this for those seeking comfort and a classic nautical look, utilizing a soft, stretch jersey blend of TENCEL™ modal and organic cotton, which features a wide waistband designed to stay in place. This regular fit offers a short leg length of 3 inches for all-day wear or lounging. Be aware that the actual stripe colors are navy blue and white, which may disappoint if you expected a different tone when ordering online.[1] | 2.5" Striped-Band Trunk Tencel™ Modal & Organic Cotton: Choose this if you want a soft, stretchy everyday trunk for desk days and lounging: its organic cotton and TENCEL™ modal blend (with a little spandex) is breathable with a secure wide waistband and short 2.5 inch inseam. Reviewers note it washes well and dries fast, but sizing runs small and it shrinks after washing — many suggest sizing up, especially between sizes. It's not recommended for high-intensity training, where one reviewer found the fabric traps moisture, and a few report the fabric losing shape over time.[3] | 3" Striped Breathable Trunk Lenzing™ Ecovero™ Viscose: Choose this if you want a low-rise trunk with a short 3-inch inseam in soft, stretchy LENZING™ ECOVERO™ viscose-blend jersey (92% viscose, 8% spandex) that reviewers say feels pleasant against the skin and moves with you. It suits those who prefer a clean look with continuous narrow stripes and no visible external logo, and buyers report the cut runs true to size. One reviewer who enjoyed the feel cautions the trunks may not hold up over time, so long-term durability is worth weighing.[4,5] |
Image Analysis
2 images- 01

Product
Front view of a pair of men's trunk-style underwear on a model, showing a white elastic waistband and narrow horizontal stripes in dark navy, brown, and white. Visible front pouch with vertical center seam and curved lower seam; short leg length with navy binding at the hem.
- Overall silhouetteMid-rise trunk with short legs worn on a male model; waistband sits below the navel and legs end at upper thigh.
1 region
x 0.05 · y 0.28 · w 0.90 · h 0.62 (high) - WaistbandWide white elastic waistband with a subtle diagonal ribbed texture visible across its surface.
1 region
x 0.12 · y 0.28 · w 0.76 · h 0.08 (high) - Striped bodyNarrow horizontal stripes across the body of the trunks alternating white, dark navy, and a medium brown; stripes continue uninterrupted around pouch and legs.
1 region
x 0.05 · y 0.36 · w 0.90 · h 0.50 (high) - Front pouch seamsVertical center seam down the pouch and curved stitching at the lower pouch area forming the contoured front panel.
1 region
x 0.38 · y 0.46 · w 0.24 · h 0.28 (high) - Leg hem trimThin dark navy binding visible along the bottom edge of each leg opening.
2 regions
x 0.06 · y 0.78 · w 0.40 · h 0.06 (high); x 0.54 · y 0.78 · w 0.40 · h 0.06 (high) - Model interactionModel's right hand is pulling slightly on the waistband at the hip.
1 region
x 0.78 · y 0.30 · w 0.18 · h 0.18 (high) - Visible tattoos on modelPartial tattoos visible on the left side of the torso and on the right upper thigh outside the underwear area.
2 regions
x 0.02 · y 0.03 · w 0.25 · h 0.30 (high); x 0.58 · y 0.86 · w 0.28 · h 0.12 (high)
Other
Studio shot cropped from mid-torso to mid-thigh against a plain light background; soft, even lighting with minimal shadows; image focuses on product and model, no visible text or packaging.
- Shot compositionCentered crop showing the model from just below the chest to upper thighs, product centered horizontally.
- BackgroundUniform light neutral background with no visible props.
- Lighting and shadowsSoft, even studio lighting producing gentle shadows under the waistband and around the legs.
Colors
white· waistbanddark navy· stripe - dark navymedium brown· stripe - brownwhite· stripe - whitedark navy· leg hem binding- Overall silhouetteMid-rise trunk with short legs worn on a male model; waistband sits below the navel and legs end at upper thigh.
- 02

Product
Rear view of a pair of short trunks on a male model; visible features include a wide white elastic waistband with a subtle diagonal rib pattern, a body with narrow horizontal nautical stripes in alternating dark and light colors, and a short center-back seam at the hem.
- View and fitRear-facing trunk garment worn by a male model, sitting at the natural waist with the waistband level and the trunks covering the upper thighs.
1 region
x 0.12 · y 0.55 · w 0.76 · h 0.40 (high) - WaistbandWide white elastic waistband with a subtle diagonal rib or textured stripe pattern and a seam at the center back.
1 region
x 0.20 · y 0.46 · w 0.60 · h 0.10 (high) - Main fabric patternBody fabric shows narrow horizontal nautical stripes alternating between a dark navy, a muted burgundy, thin black or very dark lines, and off-white or cream bands repeated across the garment.
1 region
x 0.12 · y 0.56 · w 0.76 · h 0.35 (high) - Center-back hem detailShort vertical center-back stitch or vent at the bottom hem of the trunks creating a small split in the stripe pattern.
1 region
x 0.45 · y 0.85 · w 0.10 · h 0.07 (high) - Fabric appearanceKnit fabric with a smooth, slightly elastic appearance that follows body contours and shows minor horizontal stretch lines in the stripes where the fabric pulls.
Other
Studio rear-shot on a plain light-gray to white background showing the model from the back; even soft lighting with minimal shadows; visible tattoos on model's neck, shoulders, and arms provide scale and context.
- Shot compositionPortrait-style studio image cropped at mid-shoulder to mid-thigh, product centered horizontally.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Background and lightingNeutral light-gray to white background with soft, even lighting and subtle shadows under the arms and below the waistband.
- Model tattoos and skinMultiple dark tattoos on the model's neck, upper arms, and forearms are visible and unobstructed.
3 regions
x 0.32 · y 0.00 · w 0.36 · h 0.32 (high); x 0.02 · y 0.28 · w 0.28 · h 0.44 (high); x 0.70 · y 0.28 · w 0.28 · h 0.44 (high) - Image qualitySharp focus on product and model with no visible motion blur; colors and fine stripe detail are clearly resolved.
Colors
white· waistbanddark navy· stripe - dark navymuted burgundy· stripe - burgundyoff-white· stripe - off-whiteblack· stripe - black thin lines- View and fitRear-facing trunk garment worn by a male model, sitting at the natural waist with the waistband level and the trunks covering the upper thighs.
Variants
4 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4678836 | 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton - Patterned Red - Small | CA$20.00 | Yes |
| 4678837 | 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton - Patterned Red - Medium | CA$20.00 | Yes |
| 4678838 | 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton - Patterned Red - Large | CA$20.00 | Yes |
| 4678839 | 3" Nautical Stripe Trunk Tencel™ Modal & Organic Cotton - Patterned Red - X-Large | CA$20.00 | Yes |
Documents & Data
Customer Reviews
8 total8 reviews · out of 5
Boxeur
Bon ratio
Bon achat
Hyper-confortable, en particulier à cause de sa bande large à la taille
Pas encore porté
Tissu semble de bonne qualité.
Très très beaux
Vraiment stylés
Ok
Ok
Parfait
Très beau tissus
Pas aimé
Je ne l’ai pas aimé. Donc retourné. Je n’aime pas le look. Pas une question de qualité ou autres
The app said they were black and white
But they're really navy blue and white.