
Only & Sons
Twill Jersey Overshirt
The Twill Jersey Overshirt by Only & Sons (available at Le 31) is a long-sleeve, collared overshirt constructed from a stretch polyester blend jersey with a textured twill-like diagonal weave. It features a pointed collar, full-length button placket, two buttoned chest flap pockets, and straight hem with folded cuffs. Designed as a versatile mid-layer or lightweight jacket, this overshirt offers a relaxed fit and durable construction suited for casual everyday wear.
- Material
- Stretch polyester blend
- Gender
- male
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Size
Specifications
An overshirt made of thick, textured jersey with twill-like diagonal stripes and two flap pockets, from a stretch polyester blend.
Thick textured jersey fabric, twill-like diagonal stripes, two flap pockets, stretch polyester blend.
- Material
- Stretch polyester blend
- Secondary
- elastane
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- thick textured jersey fabric
- twill-like diagonal stripes
- two flap pockets
- stretch polyester blend
Product Insights
Only & Sons' Twill Jersey Overshirt blends the structure of a casual blazer with the softness and stretch of a sweater through a dense, spandex-infused jersey knit that resists bagging and dries quickly, while the knitted-in twill stripes ensure no cracking or peeling. Its body-skimming drape and relaxed flap pockets enable unrestricted movement and smart-casual versatility, though it requires gentle machine washing without tumble drying to preserve shape and stretch. Part of Simons' Le 31 curated edit, it outperforms woven competitors in stretch and shape retention.
- Construction
Twill stripes are knitted in, not printed, so they won't crack or peel.
Why this is supported
The diagonal stripes are not a printed motif but a structural knit texture.
Additionally,
and
. This construction means the knit
- Hand feel
Jersey knit delivers softness, stretch, and a body-skimming drape unlike stiff cotton twill.
Why this is supported
The hand feel differs from traditional overshirts.
The fabric's thick weight gives it body:
Moreover,
The pocket execution in relaxed jersey prevents a boxy look:
For layering, the fabric is
- Shape retention
Dense jersey and spandex resist permanent bagging and deformation at stress points.
Why this is supported
The overshirt's thick jersey construction incorporates 5% spandex that is supported by the dense knit, reducing elastane strain, while thicker yarns distribute stress across stress points.
elbows and cuffs are less likely to pouch out over time because the thicker yarns distribute stress, keeping the overshirt looking structured even after months of layering use
Long-term wear and durability of the stretch polyester blend — thick_jersey_constructionThis applies to bagging resistance as well, corroborated by additional research concluding the construction
helps the overshirt resist bagging and losing shape over time
How it stacks up against other overshirts under $100 — stretch_polyester_construction. Together, these properties ensure the overshirt holds its shape over extended use.
- Quick drying
Fabric dries quickly, reducing risk of mildew and fiber weakening.
Why this is supported
Polyester's low moisture absorption and the viscose-polyester blend ensure the overshirt dries quickly after moisture exposure.
Polyester's low moisture absorption means the overshirt dries quickly after rain or perspiration
Long-term wear and durability of the stretch polyester blend — quick_drying_resistance, which prevents prolonged dampness that can cause mildew or fiber weakening, preserving the fabric's integrity.
- Care
Machine wash at 30°C gentle cycle, no tumble dry to maintain shape and stretch.
Why this is supported
The manufacturer's recommended care is essential to preserve the stretch and shape. The instructions specify:
machine washing at a maximum temperature of 30°C on a gentle cycle, do not bleach, iron at a maximum sole-plate temperature of 110-150°C, do not tumble dry
What are the recommended care instructions – is it machine washable?. Following these steps ensures the spandex and knit structure are not damaged, maintaining the garment's shape.
- Softness
Feels sweater-soft against skin, smooth and cool to the touch.
Why this is supported
The jersey knit base provides
a sweater-like softness against the skin
The visual depth and hand feel of the twill-like jersey — jersey_knit_baseand a
smooth, cool-to-the-touch hand
The visual depth and hand feel of the twill-like jersey — stretch_polyester_blend_materiality. This makes it
a softer, more pliable hand than stiff cotton canvas, meaning it can go from a base tee to a mid-layer without the discomfort of rough, unbroken fibers
How it stacks up against other overshirts under $100 — thick_jersey_vs_canvas- Movement
Allows unrestricted arm movement while looking structured.
Why this is supported
The knit construction makes it
far more forgiving in movement than a rigid jacket
The visual depth and hand feel of the twill-like jersey — jersey_knit_base, and
it offers the drape and freedom of movement of a knit while looking structured enough to replace a casual blazer
How it stacks up against other overshirts under $100 — twill_like_knit_jersey- Drape
Drapes with a body-skimming contour and retains shape when open.
Why this is supported
The thick jersey weight ensures the overshirt
retains its shaped silhouette when worn open — a common shortcoming of thinner knit shirt-jackets that tend to collapse and lose structure across the back
The visual depth and hand feel of the twill-like jersey — thick_gauged_jersey, and the garment
drapes with a slight body-skimming contour that produces a relaxed, modern silhouette
The visual depth and hand feel of the twill-like jersey — overshirt_silhouette_in_knit- Smart-casual versatility
Knit overshirt with structure replaces a casual blazer for smart-casual wear.
Why this is supported
The thick jersey body holds its shape when worn open, allowing it to replace a casual blazer in a smart-casual wardrobe. Two flap pockets on a relaxed body read smart-casual rather than purely functional. The
Le 31 by Simons: an exclusive designed in Canada
modesens.comlabel signals a considered wardrobe choice, emphasizing that this overshirt is designed as a versatile piece beyond a basic shirt-jacket.
- Fabric
Knit jersey with twill stripes provides stretch and shape retention better than woven competitors.
Why this is supported
The research compared the Only & Sons overshirt to budget competitors and found that
Most overshirts under $100 from brands like Uniqlo, H&M, and Abercrombie are cut from woven cotton or cotton blends; the Only & Sons piece uses a thick knit jersey printed with diagonal stripes that simulate a twill weave, so it offers the drape and freedom of movement of a knit while looking structured enough to replace a casual blazer.
How it stacks up against other overshirts under $100 — twill_like_knit_jerseyThe polyester-heavy blend adds mechanical stretch and shape retention:
The polyester-heavy blend provides inherent mechanical stretch without elastane, which helps the overshirt resist bagging and losing shape over time
How it stacks up against other overshirts under $100 — stretch_polyester_constructionLong-term deformation is also minimized:
The dense, textured knit resists deformation better than thin jersey — elbows and cuffs are less likely to pouch out over time
Long-term wear and durability of the stretch polyester blend — thick_jersey_constructionThe twill pattern is integral:
The twill-like texture is created by stitch variation rather than surface printing, meaning the visual detail won't crack or peel with movement or washing
Long-term wear and durability of the stretch polyester blend — knit_in_diagonal_stripesAdditional durability features include colorfastness and quick drying:
Unlike cotton which tends to lose pigment and fade to a reddish-black, polyester holds deep black dyes through countless washes
Long-term wear and durability of the stretch polyester blend — polyester_colorfastnessPolyester's low moisture absorption means the overshirt dries quickly after rain or perspiration
Long-term wear and durability of the stretch polyester blend — quick_drying_resistanceThe thick jersey provides substantial warmth and a clean silhouette:
Described as 'thick, textured jersey,' the fabric has substantial warmth for fall layering but with a softer, more pliable hand than stiff cotton canvas
How it stacks up against other overshirts under $100 — thick_jersey_vs_canvasAnd the polyester content gives a subtle sheen that prevents a flat look:
the raised ribs catch light to give the solid black color a subtle, dynamic sheen that prevents it from looking flat or overly casual
The visual depth and hand feel of the twill-like jersey — twill_like_diagonal_stripes- Pockets
Two flap pockets in relaxed jersey prevent boxy look, adding smart-casual versatility.
Why this is supported
The styling analysis notes that
Two flap pockets lean into the workwear/utility trend that drives the overshirt category, but their execution in relaxed jersey instead of rigid canvas prevents the boxy, heavy look
How it stacks up against other overshirts under $100 — flap_pocket_stylingThis confirms the pockets contribute to a smart-casual rather than workwear aesthetic.
- Curation
Only & Sons overshirt is part of Simons' Le 31 curated edit.
Why this is supported
The product is sold under the 'Only & Sons at Le 31' banner, which is part of Simons' curated Le 31 edit:
Le 31 by Simons: an exclusive designed in Canada
modesens.com- Quick dry
Dries quickly after rain or sweat, outperforming cotton.
Why this is supported
The overshirt
dries quickly after rain or perspiration
Long-term wear and durability of the stretch polyester blend — quick_drying_resistance, which prevents prolonged dampness and gives it a practical advantage over cotton, making it a reliable grab-and-go layer.
Image Analysis
2 images- 01

Product
Front-facing long-sleeve overshirt laid flat showing a pointed collar, central button placket with visible buttons, two chest flap pockets with buttons, straight hem, and plain long sleeves with cuff folds.
- Overall silhouetteFlat-lay front view of a long-sleeve overshirt with a straight hem, relaxed rectangular body, and slightly tapered shoulders.
1 region
x 0.12 · y 0.12 · w 0.76 · h 0.76 (high) - CollarPointed shirt collar with visible collar band and a narrow fold; collar sits flat and centered at the top of the garment.
1 region
x 0.38 · y 0.14 · w 0.24 · h 0.12 (high) - Central button placketVertical front placket with a visible column of round buttons evenly spaced from collar to hem.
1 region
x 0.48 · y 0.20 · w 0.03 · h 0.62 (high) - Chest pocketsTwo square chest patch pockets with rectangular flaps; each flap secures with a single visible round button.
2 regions
x 0.27 · y 0.26 · w 0.20 · h 0.16 (high); x 0.53 · y 0.26 · w 0.20 · h 0.16 (high) - Sleeves and cuffsLong straight sleeves extending to simple folded cuffs; cuffs have a horizontal seam and no visible fastener on the visible face.
2 regions
x 0.06 · y 0.34 · w 0.26 · h 0.42 (high); x 0.68 · y 0.34 · w 0.26 · h 0.42 (high) - Label text inside collar“ONLY & SONS”
1 region
x 0.46 · y 0.15 · w 0.09 · h 0.04 (medium) - Fabric textureSmooth, uniform knit or jersey surface with no visible pattern or weave; edges finished with topstitching visible at hem and sleeve cuffs.
1 region
x 0.20 · y 0.24 · w 0.60 · h 0.58 (high)
Other
Product photographed flat on a light neutral background with even top lighting and soft shadowing; centered composition with slight shadow under garment edges.
- Background and stagingLight gray neutral background filling the frame, garment centered and photographed flat without props.
- Shadows and lightingEven diffuse lighting from above with soft shadows visible beneath the lower hem and sleeve edges, minimal specular highlights.
- Image crop and framingEntire garment visible with small equal margins around edges; image is vertically oriented.
Colors
matte black· main fabric#1D1B1Bdark gray· buttons#343232- Overall silhouetteFlat-lay front view of a long-sleeve overshirt with a straight hem, relaxed rectangular body, and slightly tapered shoulders.
- 02

Product
Close-up of the upper front of a dark twill overshirt showing the collar, button placket, three visible four-hole buttons, and a flap chest pocket with a buttoned closure; fabric texture, topstitching, and folded seams are visible.
- Point collarSingle-layer point collar with visible topstitching along the outer edge and a slightly rounded collar point, made from the same twill fabric as the body.
1 region
x 0.12 · y 0.02 · w 0.60 · h 0.26 (high) - Button placketForward button placket with three visible four-hole buttons sewn through, placket edge folded and topstitched; button spacing visible but not measured.
1 region
x 0.03 · y 0.20 · w 0.24 · h 0.72 (high) - ButtonsCircular four-hole buttons with slightly glossy finish and visible thread through holes; one button sits on the chest pocket flap and two on the placket.
3 regions
x 0.06 · y 0.18 · w 0.12 · h 0.12 (high); x 0.06 · y 0.46 · w 0.12 · h 0.12 (high); x 0.58 · y 0.58 · w 0.14 · h 0.10 (high) - Chest pocket with flapRectangular chest pocket with a horizontal flap finished with narrow topstitching; flap edge is slightly rounded at the corner and fastened by a central button.
1 region
x 0.40 · y 0.52 · w 0.56 · h 0.27 (high) - Twill knit textureDiagonal twill weave texture visible across the fabric surface, with fine raised ribs giving a subtle directional pattern.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (medium) - Topstitch detailSingle-row topstitching visible along collar edge, placket, pocket flap, and pocket mouth, using thread similar in color to the fabric.
1 region
x 0.10 · y 0.04 · w 0.70 · h 0.40 (high)
Other
Studio close-up crop of the garment front on a neutral light background, even diffuse lighting with soft shadowing; image focuses on fabric texture and hardware.
- Shot compositionTight crop showing upper front area of the shirt; left side shows placket and collar, right side shows pocket and body.
- Background and lightingUniform pale background with even, diffuse studio lighting that reduces harsh shadows and highlights the fabric texture.
- Image qualityHigh-resolution detail with clear focus on fabric weave and stitching; no visible labels or tags in frame.
Colors
dark charcoal· fabric#444343medium gray· buttons#646263- Point collarSingle-layer point collar with visible topstitching along the outer edge and a slightly rounded collar point, made from the same twill fabric as the body.
Documents & Data
Customer Reviews
1 total1 reviews · out of 5
Élégant
Chemise avec des boutons et des poches