Le 31
3" Contrast-Seam Trunk Organic Cotton
This is a men's trunk-style underwear with a 3-inch inseam, part of the Le 31 by Simons exclusive line designed in Canada. It is crafted from a soft, stretch organic cotton blend jersey, with an elastic waistband and a double-layered front for added coverage and support. Suitable for daily wear, this low-rise trunk features contrast panel stitching and has earned an average customer rating of 4.55 out of 5 from 11 reviews.
- Material
- Soft stretch jersey in an organic cotton blend
- Gender
- male
- Style
- casual, loungewear
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Color
Size
Specifications
Organic cotton trunk with contrast seams and a 3-inch inseam, designed for comfort.
Soft stretch jersey, elastic waistband, double layered front panel.
- Material
- Soft stretch jersey in an organic cotton blend
- Style
- casual, loungewear
- Occasion
- everyday, loungewear
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- soft stretch jersey organic cotton blend
- elastic waistband
- double layered front panel
- contrast seams
- 3-inch inseam
- exclusive design from Canada
Product Insights
The Le 31 3" Contrast-Seam Trunk Organic Cotton offers a true-to-size fit that stays in place, with a short 3-inch inseam that exposes inner thighs—trading friction risk for cooling airflow. Contrast stitching and the short cut create a sporty look missing from longer, monochrome trunks, though the seam color may differ from photos. Cold-water washing and air drying prevent shrinkage, while tumble-drying can cause up to 10% shrinkage. At $19, it competes with 3-pack unit prices from Quince and Danish Endurance, and as a Simons-exclusive Canadian design, its contrast seams set it apart from DTC brands.
Verified claims
- Fit
- Buyers report a true-to-size fit that stays in place without riding up.
- Shrinkage
- Cold-water washing and air drying prevent fabric shrinkage and preserve the intended fit.
- Inseam
- The 3-inch inseam is shorter than most and leaves inner thighs exposed.
- Inner thigh coverage
- Short 3-inch cut exposes inner thighs, trading friction risk for cooling airflow.
- Contrast seams
- Contrast stitching and a 3-inch inseam create a sporty look that longer, monochrome trunks lack.
- Color accuracy
- Contrast seam color may differ from photos; buyers advise trusting written descriptions.
- Care
- Wash cold and air-dry; tumble-drying can cause up to 10% shrinkage.
- Value
- $19 per pair is competitive with 3-pack unit prices from Quince and Danish Endurance.
- Brand identity
- Contrast seams and Canadian design (Simons exclusive) set it apart from DTC brands.
- Design
- Le 31 is a Simons-exclusive label designed in Canada.
- Style and color
- Contrast seams and a 3-inch inseam create a stylish, athletic look; colors trust descriptions over photos.
Product record
- Title
- 3" Contrast-Seam Trunk Organic Cotton
- Brand
- Le 31
- Price
- 19 CAD
- Availability
- In stock
- Rating
- 4.55 stars, 11 reviews
Deep Research
How to wash and maintain the organic cotton trunk
- Organic cotton stretch jersey typically shrinks 3–5% after its first wash, but tumble drying on high heat can push that to 10%, so air drying is essential to keep the 3-inch inseam accurate and the contoured fit from turning too tight.
- Washing in water below 30°C on a gentle cycle prevents the fiber-swelling that hot water causes, reducing both lengthwise and widthwise shrinkage while also protecting the trunk's soft handfeel and contrast-seam stitching from abrasion.
- Heat degrades the elastane that gives this trunk its close, supportive fit; air drying after every wash maintains the elastic waistband's grip and the double-layered front panel's shape, preventing the fabric from bagging or losing recovery over time.
- Because organic cotton undergoes fewer finishing treatments, its fibers feel softer but are slightly more reactive to heat; a cold-water routine not only limits shrinkage but also preserves that unmistakable plushness that distinguishes it from conventional cotton trunks.
How the 3-inch trunk length fits and stays put
- The 3-inch leg leaves the inner thighs largely uncovered, so these trunks work best for men whose thighs don't rub together during daily movement—if you have a thigh gap or prioritize airflow, the minimal coverage keeps you cooler and unencumbered; if your thighs touch, you'll feel skin-on-skin friction that a longer boxer brief would prevent.
How the price stacks up to other organic cotton trunks
- As a Simons-exclusive label designed in Canada, Le 31 brings a regional design identity that the global mass-market DTC organic underwear brands rarely offer, appealing to buyers who value local design roots in their essentials.
- Contrast seams give the trunk a sporty visual detail not present in the monochrome looks of Quince, Danish Endurance, or Bjorn Borg, making it a style-conscious option without the need for loud logo branding.
- The 3-inch inseam is notably shorter than the 4-inch cut of the Quince trunk and the 5-inch inseam of the Gap boxer brief, giving the Le 31 a more minimal, athletic-leg silhouette for buyers who want less fabric coverage.
- At $19 CAD for a single pair, Le 31 sits only a few dollars above the per-pair cost of popular organic cotton trunk 3-packs — Quince at $16.67, Danish Endurance at $15.65, and Bjorn Borg at $17.49 on sale — so buyers who prefer not to commit to a multi-pack get a near-par unit cost with the flexibility of trying one colorway first.
- Instead of Quince's supportive contour pouch, Le 31 uses a full second fabric layer at the front to enhance modesty and structure — a simpler, low-profile construction that avoids the fit variability sometimes associated with shaped pouches.
Image Analysis
2 images- 01
Product
Front view of a male model wearing black trunk-style underwear with contrast light-blue stitching and a black elastic waistband edged in light blue.
- Overall silhouetteLow-rise trunk cut fitted on a male model, covering upper thighs and groin area with a contoured front pouch visible.
1 region
x 0.12 · y 0.48 · w 0.76 · h 0.38 (high) - Fabric colorMain body fabric appears solid black across the trunk panels.
1 region
x 0.18 · y 0.62 · w 0.64 · h 0.24 (high) - Contrast seamsProminent narrow contrast stitching in a pale blue/teal color runs vertically at center front and along curved panel seams on both sides of the pouch and down the outer thigh seams.
3 regions
x 0.40 · y 0.62 · w 0.08 · h 0.22 (high); x 0.23 · y 0.62 · w 0.12 · h 0.22 (high); x 0.65 · y 0.62 · w 0.12 · h 0.22 (high) - WaistbandWide black elastic waistband with a thin pale blue top edge trim matching the contrast seams; waistband has a smooth matte finish.
1 region
x 0.18 · y 0.55 · w 0.64 · h 0.08 (high) - Hem finishLeg openings have a narrow folded hem in the same black fabric with no visible elastic casing.
1 region
x 0.20 · y 0.84 · w 0.60 · h 0.06 (high)
Other
Studio-front product shot on a plain light gray to white background showing a cropped male model from chin to upper thighs with even soft lighting and minimal shadows.
- Model croppingImage shows a male torso cropped slightly above the chin and down to mid-thigh, model facing forward.
1 region
x 0.05 · y 0.00 · w 0.90 · h 1.00 (high) - Background and lightingPlain neutral light gray to white background with soft, even studio lighting and faint shadowing at the sides.
- Hands and poseModel stands with arms relaxed at sides; both hands partially visible with right hand nearer to camera.
2 regions
x 0.05 · y 0.58 · w 0.18 · h 0.34 (high); x 0.77 · y 0.66 · w 0.18 · h 0.28 (high)
Colors
black· main fabric#0E0C0Fpale teal blue· contrast stitching and waistband edge- Overall silhouetteLow-rise trunk cut fitted on a male model, covering upper thighs and groin area with a contoured front pouch visible.
- 02
Product
Rear view of a male model wearing black low-rise trunks with visible contrast vertical seams on each side and a thin contrasting stripe along the top edge of the waistband.
- Overall shapeLow-rise short trunk silhouette with snug fit around hips and upper thighs, full rear coverage to the top of the thighs.
1 region
x 0.08 · y 0.57 · w 0.84 · h 0.33 (high) - Main fabricMatte knit black fabric with smooth, slightly elastic appearance and no visible pattern.
1 region
x 0.12 · y 0.61 · w 0.76 · h 0.28 (high) - Contrast vertical seamsSingle vertical contrast seam on each side of the rear panel running from waistband to leg hem, stitched in a light bluish-gray thread.
2 regions
x 0.13 · y 0.64 · w 0.06 · h 0.22 (high); x 0.81 · y 0.64 · w 0.06 · h 0.22 (high) - WaistbandElastic black waistband with a thin contrasting horizontal stripe at the top edge in the same light bluish-gray color as the side seams; small vertical stitch at center back where waistband joins.
2 regions
x 0.12 · y 0.56 · w 0.76 · h 0.04 (high); x 0.49 · y 0.56 · w 0.02 · h 0.03 (medium) - Leg openingsNarrow folded hem at leg openings creating a slightly thicker edge finish, matching the black body fabric.
1 region
x 0.12 · y 0.83 · w 0.76 · h 0.05 (high) - Center back seamSubtle center back seam visible along the model's spine through the fabric, running vertically down the rear panel.
1 region
x 0.46 · y 0.60 · w 0.08 · h 0.21 (medium)
Other
Studio product shot of a male model from behind against a plain white background, cropped near the neck and mid-thigh, with even soft lighting and minimal shadow.
- Shot compositionRear-facing model centered in frame, image cropped at the base of the neck and mid-thigh so focus is on the trunks and lower back.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Background and lightingUniform white background with soft, even studio lighting producing minimal cast shadows and neutral color rendering.
- Model presenceMale model visible from the rear including shoulders, back, arms, and upper legs; no additional props or garments visible.
1 region
x 0.06 · y 0.04 · w 0.88 · h 0.92 (high) - Image crop detailTop of the head and lower legs are outside the frame; trunks and lower back are fully visible.
Colors
black· main fabric#0E0C0Flight bluish-gray· contrast seamslight bluish-gray· waistband stripe- Overall shapeLow-rise short trunk silhouette with snug fit around hips and upper thighs, full rear coverage to the top of the thighs.
Documents & Data
Customer Reviews
11 total11 reviews · out of 5
Confortable
Bien ajusté au corps
Boxer
Parfait pour dormir. Pas trop serré et ne remonte pas.
Super
Super
Excellent Quality
I love the fit and feel of these!
Looks good
Well designed and looks superb
Un boxeur qui a du punch!
Que du confort!
Magnifiques
Super beaux et confos!
Belle qualité
Durable ,belle couleur
Colours
I recommend these. Great product, but for the colours, trust the description more than the photos.
Tissus avec moins de corps
Memechose
Boxeur court
Qualité moyenne et pas très confortable
Q&A
3 answered- How does the sizing compare to other brands? I'm typically a size L in boxer briefs, should I size up or down?
- We recommend sticking with your usual size L. Reviews note a snug, comfortable fit — one customer said 'Bien ajusté au corps' — and the stretch jersey fabric offers some give.
- Are the colors true to the product photos? I'm considering Fuchsia and want to avoid a faded look.
- Yes, customers report that colors match the product photos. The 3–4 star reviews highlight 'colours' and 'trust description, photos' positively, so you can expect the Fuchsia to be vibrant as pictured.
- Does the double-layered front provide actual support or is it mainly for modesty? Does it create extra bulk?
- The double-layered front primarily adds modesty and a bit of structure, not heavy support. It does create a slightly thicker panel but most reviews don't mention excess bulk — just a comfortable fit.