Dual-striped poplin shirt An exclusive collaboration made in Canada Standard fit product image (primary)
Front view of a long-sleeve, button-front dress shirt worn by a model; shirt has vertical dual stripes, point collar, button placket and barrel cuffs, shown tucked into pants.

Le 31 x Thomas Mason

Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit

CA$375.00CAD
In Stock

This is a long-sleeve button-front dress shirt from Le 31 by Simons, designed and made in Canada from 100% cotton poplin with a white ground and navy dual vertical stripes. It has a standard fit with a straight waist and shoulders, regular-fit sleeves, a point collar, a centered button placket, and barrel cuffs; the buttons are genuine Madagascan mother-of-pearl and are noted as delicate, so the garment should not be tumble dried. The fabric is labeled Thomas Mason, and the shirt is intended for business, formal, or smart-casual wear.

Material
100% cotton weave
Style
classic, business, smart-casual, regular-fit
Category
Apparel & Accessories > Clothing > Shirts & Tops

Specifications

Exclusive Canadian-made dual-striped poplin shirt with a standard fit and genuine mother-of-pearl buttons.

Dual-striped poplin fabric, standard fit with straight waist and shoulders, regular-fit sleeves, 100% cotton, and genuine Madagascan mother-of-pearl buttons.

Material
100% cotton weave
Style
classic, business, smart-casual, regular-fit
Occasion
work, business-casual, formal
Gender
male
Age Group
adult
Condition
new
Category
Apparel & Accessories > Clothing > Shirts & Tops

Additional Attributes

  • Exclusive Le 31 by Simons design made in Canada
  • Dual-striped poplin weave
  • Bright, structured stripes with a soft, consistent hand feel
  • Poplin fabric balances strength and sophistication
  • Standard fit with a straight cut through the waist and shoulders
  • Regular-fit sleeves
  • 100% cotton construction
  • Button-front shirt
  • Genuine Madagascan mother-of-pearl buttons
  • Delicate buttons; garment should not be tumble dried
  • Downing poplin fabric named after the street of the British Prime Minister's official residence

Product Insights

Le 31 x Thomas Mason Numeric sizes 145–180 are collar sizes in inches: 145 = 14½, 150 = 15, 155 = 15½, up to 180 = 18. White ground with paired thin navy vertical stripes; matte, smooth poplin surface. Buttons are delicate; do not put the shirt in the dryer. 375 CAD buys Thomas Mason fabric, mother-of-pearl buttons and Canadian production, with no size upcharge.

Verified claims

Fit
Standard fit with a straight waist and shoulder, plus regular-fit sleeves.
Sizing
Numeric sizes 145–180 are collar sizes in inches: 145 = 14½, 150 = 15, 155 = 15½, up to 180 = 18.
Variant
One colourway, Patterned Blue, across all eight collar sizes.
Material
100% cotton poplin.
Fabric
Downing poplin: bright, structured stripes with a soft, consistent hand and a balance of strength and sophistication.
Design
White ground with paired thin navy vertical stripes; matte, smooth poplin surface.
Construction
Point collar, centred button placket and single-button barrel cuffs.
Buttons
Genuine Madagascan mother-of-pearl buttons.
Button care
Buttons are delicate; do not put the shirt in the dryer.
Wash
Machine wash cold on delicate cycle; do not bleach; hang to dry.
Ironing
Iron at medium-high heat, about 150–200°C, while slightly damp and inside out or through a pressing cloth.
Button cleaning
Avoid acid cleaners, vinegar and harsh chemicals on mother-of-pearl; if needed, a brief 5–10 minute mild soap soak is gentler.
Durability
Cotton poplin is durable for regular wear, but the mother-of-pearl buttons need protection from heat, light, humidity and chemicals.
Origin
Made in Canada; exclusive Le 31 x Thomas Mason collaboration.
Styling
Wear with solid trousers close to the shirt's white ground, and add at most one other pattern.
Styling troubleshooting
If the outfit feels too busy, swap the patterned tie for a solid one before changing the shirt.
Use
Versatile for business, formal and smart-casual wear.
Comfort
Light, breathable cotton poplin with a soft yet crisp hand.
Value
375 CAD buys Thomas Mason fabric, mother-of-pearl buttons and Canadian production, with no size upcharge.
Size availability
All eight collar sizes from 145 to 180 are in stock, including both endpoints.
Measurements
Use collar, chest and sleeve measurements from the size chart to choose between sizes.

Product record

Title
Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit
Brand
Le 31 x Thomas Mason
Price
375 CAD
Availability
In stock

Image Analysis

2 images
Dual-striped poplin shirt An exclusive collaboration made in Canada Standard fit product image (primary)
01

Product

Front view of a long-sleeve, button-front dress shirt worn by a model; shirt has vertical dual stripes, point collar, button placket and barrel cuffs, shown tucked into pants.

  • Overall silhouetteLong-sleeve, tailored dress shirt shown from the front, tucked at the waist and fitted through the torso and sleeves.
    1 regionx 0.14 · y 0.06 · w 0.72 · h 0.72 (high)
  • CollarPoint collar with visible collar points laying flat; collar band open at the neck without a tie.
    1 regionx 0.36 · y 0.06 · w 0.28 · h 0.12 (high)
  • Button placket and buttonsCentered front button placket with small round buttons in a light off-white or cream shade, evenly spaced down the shirt front.
    1 regionx 0.40 · y 0.18 · w 0.20 · h 0.48 (high)
  • Sleeve cuffsBarrel cuffs visible on both wrists with the same vertical stripe pattern; cuffs buttoned and sit at the wrist.
    2 regionsx 0.12 · y 0.66 · w 0.18 · h 0.18 (high); x 0.70 · y 0.58 · w 0.16 · h 0.20 (high)
  • Vertical stripe patternEvenly spaced dual vertical stripes running the full length of the shirt front and sleeves; stripes appear as paired thin dark lines with white ground between repeats.
    1 regionx 0.20 · y 0.18 · w 0.60 · h 0.60 (high)
  • Fabric appearanceSmooth, lightweight woven poplin appearance with a matte finish and crisp drape against the model.
    1 regionx 0.24 · y 0.20 · w 0.52 · h 0.48 (medium)

Other

Studio lifestyle image showing a model wearing the shirt against a neutral light gray background; three-quarter frontal pose with one hand in pocket and soft even lighting.

  • Model poseModel facing forward in a three-quarter frontal pose with left hand in trouser pocket and right hand relaxed at side.
    1 regionx 0.12 · y 0.12 · w 0.76 · h 0.80 (high)
  • Background and lightingEven, soft studio lighting on a neutral light gray background producing minimal shadows and even color rendition.
  • Visible non-product garmentsBlack trousers and a black belt with a silver rounded buckle are visible but are not part of the shirt product.
    1 regionx 0.20 · y 0.66 · w 0.60 · h 0.26 (high)
  • Image framingCentered full torso crop showing head down to upper thighs; shirt is fully visible on the model front.

Colors

white· shirt grounddark navy· vertical stripescream· buttons
Dual-striped poplin shirt An exclusive collaboration made in Canada Standard fit product image 2
02

Product

Neatly folded long-sleeve dress shirt shown flat from above; white poplin with evenly spaced vertical navy stripes, point collar, button placket down center, single-button barrel cuff folded over the shirt face, and four visible cream buttons.

  • Overall layoutShirt is folded flat with collar at top, button placket centered vertically, left sleeve folded across lower left front, and cuff visible over the body.
    1 regionx 0.08 · y 0.04 · w 0.84 · h 0.92 (high)
  • CollarClassic point collar with visible collar stand; collar points rest over the chest area and inner collar shows the same vertical stripe pattern.
    1 regionx 0.26 · y 0.04 · w 0.48 · h 0.18 (high)
  • Fabric patternWhite ground with regularly spaced thin vertical navy stripes composed of a pair of close parallel lines (double-line effect) running the length of the visible shirt face and sleeve.
    1 regionx 0.14 · y 0.10 · w 0.72 · h 0.78 (high)
  • Button placket and buttonsCentered front placket with four visible round cream/off-white buttons sewn through; buttons are plain with visible stitch holes.
    1 regionx 0.42 · y 0.18 · w 0.16 · h 0.64 (high)
  • Cuff styleFolded single-button barrel cuff visible on lower left front; cuff edge aligns with the vertical stripe pattern and has one visible button on the cuff and a second button on the placket extension.
    1 regionx 0.08 · y 0.56 · w 0.28 · h 0.34 (high)
  • Label clusterTwo fabric labels sewn on the inside back of the collar area: a small dark rectangular label above a white square label.
    1 regionx 0.40 · y 0.06 · w 0.20 · h 0.10 (high)
  • Brand label text“THOMAS MASON”
    1 regionx 0.43 · y 0.10 · w 0.14 · h 0.04 (high)
  • Secondary label text“FABRICS / TISSUS”
    1 regionx 0.43 · y 0.13 · w 0.14 · h 0.03 (high)
  • Top dark label partial text“31”Partial
    1 regionx 0.36 · y 0.06 · w 0.28 · h 0.08 (medium)
  • Size/fit text block“15.5 39”Partial
    1 regionx 0.46 · y 0.08 · w 0.10 · h 0.04 (medium)

Other

Studio flat-lay photo with neutral light gray background, even soft lighting and soft shadowing around the shirt edges; image is cropped closely to the shirt with top-down camera angle.

  • Background and stagingShirt is photographed on a uniform light gray backdrop with no props; even diffuse lighting minimizes harsh shadows.
  • ShadowingSoft vignette-style shadow visible beneath the shirt edges, most noticeable at the bottom edge.
    1 regionx 0.18 · y 0.84 · w 0.64 · h 0.12 (medium)
  • Shot compositionTop-down centered crop showing full front face of the folded shirt; minimal negative space on left and right edges.

Colors

bright white· shirt bodynavy· vertical stripescream· buttons

Variants

8 SKUs
All variants of Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit
SKUTitlePriceAvail
4765817Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 145CA$375.00Yes
4765818Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 150CA$375.00Yes
4765819Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 155CA$375.00Yes
4765820Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 160CA$375.00Yes
4765821Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 165CA$375.00Yes
4765822Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 170CA$375.00Yes
4765823Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 175CA$375.00Yes
4765824Dual-Striped Poplin Shirt An Exclusive Collaboration Made In Canada Standard Fit - Patterned Blue - 180CA$375.00Yes

Documents & Data

Provenance

Merchant Link
https://www.simons.ca/en/men-clothing/dress-shirts/standard-fit/dual-striped-poplin-shirt-an-exclusive-collaboration-made-in-canada-standard-fit--23622-6015
Updated