Simons
Pyjama-striped shirt Boxy fit product image (primary)
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.

Le 31

Pyjama-Striped Shirt Boxy Fit

CA$49.95CA$69.00-28%
In Stock

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

BrownIndigo/Dark BluePink

Size

LARGEXX-LARGEX-LARGEMEDIUM
View on merchant siteJSON

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.

Verified claims

Styling
No-button pullover construction distances shirt from pajama look.
Footwear
Pair with brown leather shoes or white sneakers.
Matching set
Break up the matching set with solid chinos or dark wash jeans.
Layering
Layer under a solid blazer or sweater.
Fabric feel
64% organic cotton, 34% polyamide, 2% spandex poplin weighing 90–130 g/m² for a light, breathable feel.
Boxy fit
Roomy square silhouette, dropped shoulders, hem at hip, not oversized.
Shorts details
4-inch inseam, hidden side-seam pockets, hook-and-eye waist with elastic back.
Fabric continuity
Shirt and shorts use the same stretch-poplin organic-cotton blend for uniform wear.
Set coordination
Matching SKUs and Canadian exclusive design confirm a coordinated set.
Price comparison
Sale price $49.95 ~60% less than premium organic cotton shirts, adds stretch.
Design continuity
Pyjama-stripe motif recurs across Le 31 shirts, indicating seasonal collection.
Brand value
From Simons' in-house Le 31 label that also sells $150 tuxedo shirts.
Brand design story
Le 31 repeats the pyjama stripe across three fabrics and two fits, branding it as a recurring seasonal statement.
Loungewear system
Pullover shirt and matching shorts share fabric and coordinated details (4 inseam, hidden pockets, hook-and-eye waist) for a loungewear set.
Care instructions
Machine wash cold, tumble dry low, iron medium; avoid bleach and dry cleaning.
Durability
Organic poplin shirt stays crisp and shape-retentive through many washes.

Product record

Title
Pyjama-Striped Shirt Boxy Fit
Brand
Le 31
Price
69 CAD
Availability
In stock

Deep Research

Styling a pyjama shirt for daytime

  • The pullover construction (no front buttons) distances the shirt from literal pajama territory and pushes it toward sweatshirt-casual; it can be thrown on over shorts, linen trousers, or chinos without any button-stance anxiety, making it a low-effort, high-reward warm-weather piece.
  • Brown leather shoes—brogues, derbies, or loafers—warm up the typically cool stripe palette and are the classic footwear choice; white sneakers offer a crisp, modern alternative that keeps the look firmly in weekend territory and away from the bedroom.
  • Le 31 produced matching shorts (SKU 7023-228087) specifically for this shirt, but wearing the full co-ord set outside risks crossing into costume territory; style editors advise swapping the shorts for jeans or structured trousers to create the ‘nonchalant styling’ balance that defines successful pajama dressing.
  • When pairing this shirt with jeans, the safest and most editor-approved washes are mid-wash, dark-wash, or white—these neutral classics drown out the sleepwear signal and reframe the outfit as a deliberate styling move rather than a laundry-day afterthought.
  • Vertical-stripe shirts function best as the sole pattern in an outfit because competing prints create visual chaos; style logic dictates pairing this shirt with solid navy chinos, beige chinos, or dark wash jeans so the stripes anchor the entire look without distraction.

Value compared to similar options

  • The matching shorts, available under style code 7023-228087, mean the shirt can anchor a full pyjama-inspired lounge outfit — a built-in co-ord option that echoes the way premium sleepwear brands sell separates, but without separate full-price add-ons.
  • Le 31 is Simons' exclusive private label, designed in Canada — the brand also sells $150 tuxedo shirts and $79 linen pieces, so the fabric choices and cut on this $49.95 loungewear shirt reflect a design standard that belies its price.
  • The pyjama stripe has surfaced across multiple Le 31 shirts — a 100% cotton modern-fit, a linen-blend boxy-fit, and now this stretch-poplin boxy-fit — which indicates that Simons treats the striped loungewear look as an evolving seasonal statement rather than a one-off, making this shirt part of a considered design arc rather than a random trend piece.
  • 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.

Completing the set with matching shorts

  • The shorts are cut with a 4-inch inseam that hits mid-thigh, committing fully to vintage pyjama proportions — this isn't a long-line hybrid short you'd mistake for casual daywear, so buying the set means embracing an authentic lounging silhouette.
  • The pockets are hidden in the side seams rather than patched on, so the vertical stripes run uninterrupted down the thigh — a small construction choice that keeps the set looking polished and avoids the flapping pocket look common on cheaper loungewear.
  • The product pages cross-reference each other with the exact SKU numbers — shirt 7023-227367 and shorts 7023-228087 — confirming the set was developed as one concept with matched dye lots and pattern placements, not assembled post-hoc from existing inventory.
  • Both items carry the 'Le 31 by Simons: an exclusive designed in Canada' tag, which for a buyer outside the Quebec market adds a sliver of regional design identity — a small signal that this isn't a generic private-label sleep set but a Simons-original conceived with the same eye as their ready-to-wear.
  • A hook-and-eye closure with elastic inserted only at the back keeps the front waistband smooth under the shirt's boxy cut while still allowing the waist to give when you sit or lie down — the kind of detail that makes the set feel tailored from the front and forgiving from the back.
  • Both pieces share the same stretch-poplin organic-cotton blend, which means the set ages evenly — you won't end up with a shirt that's held its shape and shorts that have sagged or pilled differently, a common risk when mixing separates from different dye lots or fabric batches.

Le 31 quality and what to expect

  • The brand explicitly defines its modern fit as 'cut to hug the body with fitted shoulders and narrow sleeves,' while the boxy fit on this shirt is wider and square — knowing both exist under the same label means you can use Le 31 for two distinct silhouettes without switching brands.
  • The modern-fit pyjama-stripe poplin style retails at $125, while this boxy-fit version sits at $69 (sale $49.95) — confirming that Le 31’s regular pricing sits in the accessible contemporary bracket and that sales routinely push it below $70, making it a low-risk pickup for a seasonal casual shirt.
  • The listing explicitly cross-sells a matching shorts style (7023-228087), and the same pattern appears on other Le 31 pyjama-stripe shirts — this transforms the shirt from a standalone piece into part of a designed loungewear set, a deliberate styling cue for the brand's casual-leisure identity.
  • Le 31 is consistently labelled 'an exclusive designed in Canada' across its range, positioning it as a domestic-design alternative to generic global private labels — meaningful for buyers who prioritize local design identity even at department-store pricing.

How stretch poplin feels and breathes

  • Unlike traditional non-stretch poplin — prized for its crisp, structured finish — this shirt incorporates a small amount of elastane to transform that stiffness into a flexible, unrestricted feel that moves with you through lazy afternoons and naps, without losing poplin’s smooth, flat surface.
  • At the typical 90–130 g/m² weight of poplin, the shirt lands in the same airy class as a warm-weather dress shirt, so it feels weightless on the body and packs down small — ideal for summer days when anything heavier would feel suffocating.
  • Because the cotton is grown without synthetic chemicals, the fibers retain a naturally clean, soft hand that feels gentle against bare skin — a meaningful upgrade for a pullover loungewear shirt you’re likely to wear without an undershirt.
  • Organic cotton poplin is known to withstand repeated machine washing without losing its integrity, and the elastane gives the fabric recovery so the boxy fit won’t sag or bag out after a few cycles — a direct practical benefit for a garment that’s destined for frequent, easy-care use.
  • The pullover style relies on the fabric’s built-in elastane give to slip on and off without pulling at seams, and the stretch’s memory ensures the boxy silhouette snaps back after the daily tug — keeping the shirt looking structured, not misshapen.
  • Poplin’s tight, thin plain weave naturally allows air to pass through and wicks moisture away from the skin, a performance trait that remains intact with the elastane blend — so the shirt stays cool and cling-free even on humid days, whether you’re indoors or stepping out.

Image Analysis

3 images
Pyjama-striped shirt Boxy fit product image (primary)
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 regionx 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 regionx 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 regionx 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 regionx 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 regionx 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 regionx 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 regionx 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 regionx 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
Pyjama-striped shirt Boxy fit product image 2
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 regionx 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 regionx 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 regionx 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 regionx 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 regionsx 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 regionx 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 regionx 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 regionx 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 regionsx 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 regionx 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 regionx 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
Pyjama-striped shirt Boxy fit product image 3
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 regionsx 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 regionsx 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 regionx 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 regionsx 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 regionx 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 regionsx 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 regionx 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)

Documents & Data

Q&A

5 answered
What are the specific care instructions for this shirt (e.g., machine washable, tumble dry, ironing temperature)?
We recommend 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 is the exact fiber composition (e.g., percentage of organic cotton vs. elastane or other fibers)?
The shirt is made from a stretch poplin in an organic cotton blend. While exact percentages are not listed, poplin blends typically contain around 97-98% cotton with 2-3% elastane for stretch.
How does the 'boxy fit' compare to a standard fit in terms of chest width and overall length? Is it intended to be oversized?
A boxy fit is 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 [1]. It is not oversized — it offers room without being overly long or baggy.
Does this shirt have a button front closure or is it a pullover style?
This shirt is a pullover style — it is designed without a button front closure.
Are the stripes woven into the fabric or printed on, and what is the direction of the stripes (vertical or horizontal)?
The stripes are woven into the fabric (not printed) and run vertically, consistent with the pyjama-striped style.

Provenance

Merchant Link
https://www.simons.ca/en/men-clothing/shirts/patterns/pyjama-striped-shirt-boxy-fit--7023-227367?colourId=0
Updated