
Le 31
Pyjama-Striped Shirt Boxy Fit
This short-sleeve shirt from Le 31 by Simons features a boxy fit and a patch chest pocket. It is made from stretch poplin in an organic cotton blend. The shirt has a vertical stripe pattern in brown, white, and light blue, and pairs with matching shorts (sold separately).
- Material
- Stretch poplin in an organic cotton blend
- Style
- boxy, casual, loungewear
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Size
Specifications
A boxy fit short-sleeve shirt with stretch poplin and organic cotton blend, featuring a patch pocket and pyjama stripes.
Stretch poplin fabric, organic cotton blend, patch pocket, boxy fit.
- Material
- Stretch poplin in an organic cotton blend
- Style
- boxy, casual, loungewear
- Occasion
- casual, loungewear
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- Pyjama-striped pattern
- Boxy fit
- Short sleeves
- Patch pocket on the chest
- Stretch poplin fabric
- Organic cotton blend
Product Insights
Le 31's Pyjama-Striped Shirt in boxy fit offers a roomy square silhouette with dropped shoulders and hip-length hem, constructed as a no-button pullover to distance from actual pajama wear. Made from a lightweight stretch-poplin blend of 64% organic cotton, 34% polyamide, and 2% spandex (90–130 g/m²), the shirt stays crisp and shape-retentive through washes. It is part of a coordinated loungewear set with matching shorts featuring a 4-inch inseam, hidden side-seam pockets, and hook-and-eye waist with elastic back, but the main tradeoff is that breaking up the set with solid chinos or dark wash jeans avoids a pajama look. Priced at $69 CAD (often $49.95 on sale, about 60% less than premium organic cotton shirts with added stretch), it layers well under a blazer or sweater and pairs with brown leather shoes or white sneakers. The pyjama-stripe motif recurs across Le 31's seasonal collection from Simons' in-house label, which also sells $150 tuxedo shirts, underscoring the brand's value proposition.
- Styling
No-button pullover construction distances shirt from pajama look.
Why this is supported
The pullover construction distances the shirt from literal pajama territory,
making it a low-effort, high-reward warm-weather piece
Styling a pyjama shirt for daytime — pullover_ease.
- Footwear
Pair with brown leather shoes or white sneakers.
Why this is supported
Brown leather is the classic pairing because it warms the typically cool-toned stripe palette.
lookastic.comWhite sneakers are the modern weekend-friendly choice.
lookastic.com- Matching set
Break up the matching set with solid chinos or dark wash jeans.
Why this is supported
The matching 4-inch shorts commit fully to vintage pyjama proportions.
In actual styling, however, the key is to strike a balance so it does not look too much like ‘real pajamas’.
khan.co.krTreat the shirt as the patterned anchor and keep everything else solid. Navy chinos, beige chinos, or dark wash jeans below; a solid blazer or sweater above if layering.
lookastic.com- Layering
Layer under a solid blazer or sweater.
Why this is supported
a solid blazer or sweater above if layering
lookastic.com- Fabric feel
64% organic cotton, 34% polyamide, 2% spandex poplin weighing 90–130 g/m² for a light, breathable feel.
Why this is supported
The stretch poplin (64% organic cotton, 34% polyamide, 2% spandex) weighs 90–130 g/m², giving it a lightweight and airy feel. The organic cotton provides a soft, smooth hand, described by fabric experts as:
Soft & Smooth Texture: The fine weave of Poplin ensures a smooth, crisp finish that’s comfortable against the skin
jcwtextile.com. The weave is also naturally breathable, making it suited for summer wear. The 2% spandex adds stretch for easy movement and shape retention, and the fabric remains durable after repeated washing. Its lightweight flexible make-up also aids packability, though the crisp poplin can wrinkle, as one source notes:
The lightweight poplin fabric is crisp and breathable. But it’s wrinkle-prone
nytimes.comThe shirt's material is 64% organic cotton, 34% polyamide, and 2% spandex—a formulation that differs from standard poplin, which typically has
poplin blends typically contain around 97-98% cotton with 2-3% elastane for stretch
What is the exact fiber composition (e.g., percentage of organic cotton vs. elastane or other fibers)?. The polyamide provides durability and shape recovery, while the organic cotton ensures softness and breathability, as noted in fabric guides:
Breathable & Lightweight: Its breathable properties make it perfect for summer garments
jcwtextile.comand
100% Organic Cotton: Grown without pesticides or chemicals
jcwtextile.com.
- Boxy fit
Roomy square silhouette, dropped shoulders, hem at hip, not oversized.
Why this is supported
The boxy fit is defined as
cut wider through the chest and body with a straighter side seam, creating a square silhouette, and typically has slightly dropped shoulders and a hem that sits at or just below the hip
How does the 'boxy fit' compare to a standard fit in terms of chest width and overall length? Is it intended to be oversized?. This makes it the relaxed alternative to Le 31's modern fit, which is
cut to hug the body with fitted shoulders and narrow sleeves
stylight.ca. The poplin fabric weighs between 90 and 130 g/m², so the full cut feels airy, and the organic cotton poplin is highly durable and maintains its shape after washing. The vertical stripes are
woven into the fabric (not printed) and run vertically
Are the stripes woven into the fabric or printed on, and what is the direction of the stripes (vertical or horizontal)?, ensuring the pattern follows the silhouette consistently.
- Shorts details
4-inch inseam, hidden side-seam pockets, hook-and-eye waist with elastic back.
Why this is supported
The matching shorts feature
Inseam: 4 (10 cm)
stylight.ca,
Pockets hidden in the side seams
stylight.ca, and a
Hook and eye waist with an elastic insert behind
stylight.ca, delivering a comfortable, polished fit.
- Fabric continuity
Shirt and shorts use the same stretch-poplin organic-cotton blend for uniform wear.
Why this is supported
Both pieces are crafted from
Stretch poplin in an organic cotton blend
stylight.ca, ensuring matching aging and a cohesive set.
- Set coordination
Matching SKUs and Canadian exclusive design confirm a coordinated set.
Why this is supported
The product pages cross-reference each other:
Matching shirt also available: 7023-227367
stylight.ca. Both items carry the label
Le 31 by Simons: an exclusive designed in Canada
stylight.ca, confirming the pieces were designed as a coordinated set.
- Price comparison
Sale price $49.95 ~60% less than premium organic cotton shirts, adds stretch.
Why this is supported
At the sale price of $49.95, this shirt undercuts The White Company's organic cotton pyjama shirt, which retails for about $80, by roughly 60% while adding elastane stretch.
The White Company, a higher-tier sleepwear specialist, sells a long-sleeve organic cotton pyjama shirt for £45 (roughly $80 CAD) without stretch, while Le 31's version uses an organic cotton blend with elastane and lands at $49.95 on sale — essentially the same core material story with added mobility for about 60% less.
Value compared to similar options — white_company_price_benchmarkThe brand's own pricing reinforces this value: originally retailing for $69 and routinely dropping to $49.95 on sale, this shirt also comes in at a lower price point than Le 31's modern-fit version at $125.
$69.95 $125.00
stylight.caThe 2% spandex content ensures the stretch poplin keeps its shape and withstands repeated washing, adding durability.
Durable & Long-Lasting: Despite its softness, Organic Cotton Poplin is highly durable and maintains its quality after repeated washes.
jcwtextile.comCatalog verified the price positioning: the boxy-fit shirt is listed at $69.95 regular, on sale for $49.95, while the modern-fit variant is priced at $125.00 regular. The source comparison shows
, indicating that the boxy fit is a more accessible entry point to the stripe collection.
- Design continuity
Pyjama-stripe motif recurs across Le 31 shirts, indicating seasonal collection.
Why this is supported
The pyjama-stripe motif appears on multiple Le 31 shirts, including a modern-fit cotton version and a linen boxy-fit variant, confirming it is a seasonal core rather than a one-off print.
Comfortable 100% cotton fabric
stylight.caLightweight fabric made of organic cotton and breathable Masters of FLAX FIBRETM linen
lyst.com- Brand value
From Simons' in-house Le 31 label that also sells $150 tuxedo shirts.
Why this is supported
Le 31 is Simons' exclusive in-house label, designed in Canada, and its range includes formal shirts up to $150, which adds design credibility to this $49.95 lounge piece.
Le 31 by Simons: an exclusive designed in Canada
stylight.ca$150 Le 31Jacquard Striped Bib Tuxedo Shirt Comfort Fit - White
lyst.com- Brand design story
Le 31 repeats the pyjama stripe across three fabrics and two fits, branding it as a recurring seasonal statement.
Why this is supported
Catalog verified that Le 31 is not a generic private-label; its 'designed in Canada' tag appears consistently across the range:
Le 31 by Simons: an exclusive designed in Canada
stylight.caThe pyjama stripe has been executed in three distinct fabrications—100% cotton, linen blend, and stretch poplin—and across two fit models. The modern fit is described as
cut to hug the body with fitted shoulders and narrow sleeves
stylight.ca, and the boxy fit is the current variant. The stripe first appeared in a 100% cotton fabric, described as
Comfortable 100% cotton fabric
stylight.ca. This shows a deliberate seasonal motif rather than a one-off trend piece.
- Loungewear system
Pullover shirt and matching shorts share fabric and coordinated details (4 inseam, hidden pockets, hook-and-eye waist) for a loungewear set.
Why this is supported
The shirt is designed as a pullover with no front buttons:
This shirt is a pullover style — it is designed without a button front closure.
Does this shirt have a button front closure or is it a pullover style?The matching shorts share the same fabric and dye lot and are designed with coordinated details:
Inseam: 4 (10 cm)
stylight.ca,
Pockets hidden in the side seams
stylight.ca, and
Hook and eye waist with an elastic insert behind
stylight.ca. Product codes are cross-linked, confirming the set:
Matching shirt also available: 7023-227367
stylight.ca.
- Care instructions
Machine wash cold, tumble dry low, iron medium; avoid bleach and dry cleaning.
Why this is supported
The brand's care instructions are:
machine washing this shirt in cold water, tumble drying on low, and ironing at medium temperature. As with most stretch poplin blends, avoid bleach and dry cleaning.
What are the specific care instructions for this shirt (e.g., machine washable, tumble dry, ironing temperature)?. The lightweight poplin dries quickly, making it low-maintenance for travel.
- Durability
Organic poplin shirt stays crisp and shape-retentive through many washes.
Why this is supported
Research confirms the fabric is
highly durable and maintains its quality after repeated washes
jcwtextile.com, and the stretch fabric ensures
the boxy silhouette snaps back after the daily tug
How stretch poplin feels and breathes — pullover_friendly_stretch. The pullover design reduces seam stress, and the matching shorts are cut from the same fabric, so the set ages evenly. Breathability also persists after washing.
Image Analysis
3 images- 01

Product
A striped button-up shirt seen on a reclining model; visible details include a pointed collar, vertical multi-tone stripes, dark round buttons, and a white crew neck shirt worn underneath.
- Shirt patternVertical striped woven fabric across the visible torso and sleeve with alternating narrow white and light bluish-gray stripes on a darker slate-gray background.
1 region
x 0.02 · y 0.48 · w 0.70 · h 0.44 (high) - Collar and placketPointed shirt collar lying open over the chest with a visible placket containing round dark buttons; one button is fastened and another unfastened near the chest.
1 region
x 0.15 · y 0.62 · w 0.45 · h 0.20 (high) - ButtonsSmall round dark buttons sewn on the shirt placket, contrasting with the lighter stripe colors.
1 region
x 0.11 · y 0.64 · w 0.08 · h 0.07 (high) - Inner t-shirtWhite crew neck T-shirt visible underneath the open shirt, showing the neckline and upper chest area.
1 region
x 0.18 · y 0.68 · w 0.40 · h 0.25 (high) - Left sleeve detailPart of the left sleeve visible with the same vertical stripe pattern and a soft drop shoulder seam area.
1 region
x 0.00 · y 0.56 · w 0.36 · h 0.30 (high) - Pocket suggestionA faint rectangular shape on the left chest area suggests a chest pocket, but the detail is partly obscured by fold and lighting.Partial
1 region
x 0.02 · y 0.62 · w 0.18 · h 0.14 (medium)
Other
Lifestyle shot showing a male model reclining on a soft upholstered surface against a neutral wall with warm studio lighting and soft shadows.
- Model poseMale model reclining on a cushioned surface, head tilted back against the furniture and right hand raised near his forehead.
1 region
x 0.20 · y 0.04 · w 0.64 · h 0.52 (high) - Background and propSmooth light-beige wall background and a pinkish-beige upholstered cushion or sofa supporting the model; the prop is visible along the right side of the frame.
1 region
x 0.58 · y 0.32 · w 0.40 · h 0.60 (high) - Lighting and color toneWarm, soft directional lighting with gentle shadows on the model face and fabric, producing a warm color cast across skin and textiles.
- Image crop and focusTight vertical crop focusing on the upper torso and face; subject is in sharp focus while areas near image edges show slight falloff.
Colors
slate gray· shirt base#64534Clight blue gray· shirt narrow stripewhite· shirt narrow stripe 2dark brown· buttons#45322Cwhite· inner t-shirt- Shirt patternVertical striped woven fabric across the visible torso and sleeve with alternating narrow white and light bluish-gray stripes on a darker slate-gray background.
- 02

Product
Model wearing a short-sleeve, boxy, button-front striped shirt left open over a white ribbed tank, paired with matching striped shorts; vertical stripes alternate brown, white, and light blue.
- Shirt silhouetteShort-sleeve, boxy, collar shirt with a straight hem and a relaxed, slightly cropped length; worn open down the front.
1 region
x 0.14 · y 0.14 · w 0.72 · h 0.46 (high) - Shirt patternEven vertical stripe pattern with repeating narrow white and light blue stripes separated by wider brown stripes across the whole shirt.
1 region
x 0.16 · y 0.16 · w 0.55 · h 0.40 (high) - Front closureButton-front placket with visible round buttons along the center front; placket lies flat and the shirt is unbuttoned.
1 region
x 0.35 · y 0.20 · w 0.20 · h 0.38 (high) - Chest pocketSingle patch pocket on the left chest aligned with the stripe pattern and integrated into the shirt front.
1 region
x 0.52 · y 0.30 · w 0.14 · h 0.12 (medium) - Sleeve length and cutShort sleeves with a relaxed, slightly wide cut ending above the elbow.
2 regions
x 0.14 · y 0.28 · w 0.28 · h 0.18 (high); x 0.58 · y 0.28 · w 0.30 · h 0.18 (high) - Matching shortsElastic-waist shorts in the same vertical stripe pattern as the shirt, visible from the waist to mid-thigh.
1 region
x 0.20 · y 0.60 · w 0.60 · h 0.30 (high) - UndershirtWhite ribbed tank top worn underneath the open shirt, showing across the chest and waistband area.
1 region
x 0.38 · y 0.26 · w 0.24 · h 0.24 (high) - Tank embellishmentSmall dark embroidered or printed emblem at chest center on the tank; characters are not legible at this resolution.Partial
1 region
x 0.44 · y 0.30 · w 0.10 · h 0.08 (medium) - Buttons color and shapeRound buttons with a darker brown hue contrasting the stripe background.
2 regions
x 0.38 · y 0.22 · w 0.06 · h 0.06 (high); x 0.38 · y 0.30 · w 0.06 · h 0.06 (high)
Other
Studio-style product shot with a model against a plain white background; portrait framing from head to mid-thigh and even diffuse lighting with soft shadows.
- Background and lightingPlain high-key white background with soft, even studio lighting and minimal shadowing.
- Model poseModel facing forward with hands positioned behind the back, shirt worn open, head and shoulders visible; image cropped at mid-thigh.
1 region
x 0.14 · y 0.03 · w 0.72 · h 0.94 (high) - Image framingCentered vertical composition showing full front of garment set; no visible packaging or props.
- Image qualitySharp focus on garment and model with no visible motion blur; emblem text on tank is small and not fully legible.
1 region
x 0.42 · y 0.28 · w 0.12 · h 0.10 (medium)
Colors
medium brown· primary wide stripe#6B5C5Bbright white· narrow stripe#CBCCCCpale blue· narrow light blue stripedark brown· buttons#5D422Awhite· undergarment tank#CBCBCB- Shirt silhouetteShort-sleeve, boxy, collar shirt with a straight hem and a relaxed, slightly cropped length; worn open down the front.
- 03

Product
Rear view of a short-sleeve, boxy-cut shirt with vertical multi-color stripes worn with matching striped shorts; visible are shirt back yoke, short sleeves, and the top of the shorts.
- Back yoke and panelHorizontal back yoke across the upper back transitions to a vertically striped main back panel; stripes on the yoke run horizontally while the main panel stripes run vertically.
2 regions
x 0.20 · y 0.12 · w 0.60 · h 0.20 (high); x 0.20 · y 0.32 · w 0.60 · h 0.28 (high) - Sleeve shapeShort, straight-cut sleeves with the same vertical stripe pattern as the shirt body, ending above the elbow.
2 regions
x 0.08 · y 0.24 · w 0.20 · h 0.18 (high); x 0.72 · y 0.24 · w 0.18 · h 0.18 (high) - Hem and fitBoxy, straight hem that falls to just above the waistband of the matching shorts; hem is horizontally aligned and slightly cropped.
1 region
x 0.18 · y 0.56 · w 0.64 · h 0.10 (high) - Matching shorts visibleShorts with the same vertical stripe pattern as the shirt, visible from the waist down to mid-thigh; a small horizontal welt pocket or seam is visible on the right-back of the shorts.
2 regions
x 0.28 · y 0.60 · w 0.44 · h 0.32 (high); x 0.54 · y 0.68 · w 0.18 · h 0.10 (medium) - CollarA short, turned-down collar visible from the rear neckline, covered in the same striped fabric with the stripe orientation following the collar shape.
1 region
x 0.38 · y 0.10 · w 0.26 · h 0.08 (high) - Body occlusionModel's arms and partial torso obscure side seams and lower shirt sides; right hand is near the shorts hem and partially cropped by the image bottom.
2 regions
x 0.02 · y 0.56 · w 0.20 · h 0.40 (high); x 0.78 · y 0.56 · w 0.20 · h 0.40 (high)
Other
Studio shot showing a model from the rear against a plain light gray to white background; even diffuse lighting with soft shadow at the floor; image cropped near mid-thigh.
- Shot compositionRear three-quarter view of a standing model, framed from the head to mid-thigh with the model turned slightly to the left.
1 region
x 0.05 · y 0.00 · w 0.90 · h 1.00 (high) - Background and lightingUniform light gray to white seamless background with soft, even studio lighting and minimal shadows.
- Image qualityHigh-resolution, well-focused image with no visible text overlays or graphic elements.
Colors
dark brown· main stripe (dark)#5B524Dlight blue· accent stripe (light blue)white· accent stripe (white)- Back yoke and panelHorizontal back yoke across the upper back transitions to a vertically striped main back panel; stripes on the yoke run horizontally while the main panel stripes run vertically.