Sylvain structure knit shirt product image (primary)
Front view of a long-sleeve black knit button-up shirt worn tucked into trousers; visible pointed collar, full-length front placket with glossy dark buttons, long sleeves with single-button cuffs, and a smooth knit texture.

Theory

Sylvain Structure Knit Shirt

5/5 (1)
CA$270.00CAD
In Stock

The Theory Sylvain Structure Knit Shirt is a men's long-sleeve knit shirt made from a cotton-polyester blend. It features a tailored fit, pointed collar, full-length button front, buttoned cuffs, and an asymmetric hem. This versatile garment is intended for professional or smart-casual wear, and has received a 5/5 rating from user reviews.

Material
cotton and polyester blend
Style
minimalist, modern, organic-modern, sustainable, tailored, elevated-basics
Category
Apparel & Accessories > Clothing > Shirts & Tops

Specifications

Streamlined, structured knit shirt with a tailored yet supple fit, full-length buttons and an asymmetric hem; embodies Theory's modern, understated sophistication.

Tailored fit; structured knit in a cotton/polyester blend; full-length button closure; buttoned cuffs; asymmetric hem; streamlined minimalist silhouette.

Material
cotton and polyester blend
Secondary
cotton, polyester
Style
minimalist, modern, organic-modern, sustainable, tailored, elevated-basics
Gender
male
Age Group
adult
Condition
new
Category
Apparel & Accessories > Clothing > Shirts & Tops

Additional Attributes

  • Luxurious structured knit in a cotton and polyester blend
  • Structured yet supple fit
  • Tailored fit
  • Streamlined, minimalist design
  • Full-length button front
  • Buttoned cuffs
  • Asymmetric hem
  • Meticulously crafted finish
  • Understated, sophisticated aesthetic
  • Modern, urban minimalism
  • Designed to mix-and-match with neutral tones

Product Insights

The Theory Sylvain Structure Knit Shirt delivers a tailored dress-shirt silhouette with the recovery and ease of a knit: a Japan-milled 53% cotton/47% polyester ultra-compact knit stretches and springs back, drapes like woven cotton, resists wrinkles, and holds its shape through machine washes, aided by back darts at the small of the back and an asymmetric hem that works tucked or untucked. Its long pointed collar draws a vertical line that visually thins wider faces and shorter necks, and size M offers 2–3 inches of ease for a 40–41 inch chest with a 28.75-inch length and 33-inch sleeves—fitting a 6 ft 1 in model. The tradeoff is breathability: at 35 cm³/cm²/s air permeability, it runs warmer than pure cotton in humid heat, and at 275 CAD (US $195) it costs more than twice Bleusalt's $90 wash-and-dry Tencel shirt, while Italian-made rivals from Thom Browne or Luca Faloni offer superior fiber and provenance. All 12 variants across black, ivory/cream beige, and baby blue are in stock, positioning this as a premium, wrinkle-free knit alternative to woven dress shirts rather than a fabric-purity or value leader.

Verified claims

Knit performance
Ultra-compact Japanese knit stretches, recovers, drapes like woven cotton, and holds its shape.
Fabric performance
The 53% cotton, 47% polyester blend limits shrinkage and maintains shape.
Breathability
Air permeability measured at 35 cm³/cm²/s – moderate, less breathable than pure cotton.
Production origin
Japanese-milled knit, 53% cotton/47% polyester and Vietnam-finished; Thom Browne's Oxford is 100% cotton, Italy-made.
Fit
Size M provides 2-3 inches of ease for a 40-41 inch chest.
Sizing for tall
Size M measures 28.75-inch length and 33-inch sleeves, and a 6 ft 1 in fit model wears M.
Hem
Asymmetric hem allows tucked or untucked styling, with a tailored fit and wrinkle-resistant knit that retains shape.
Temperature
Air permeability is 35 cm³/cm²/s, moderate — less breathable than pure cotton, so it runs warm on hot humid days.
Alternatives
Bleusalt's $90 tencel shirt is the cheaper wash-and-dry pick; Thom Browne and Luca Faloni's Italian shirts beat it on fiber and provenance.
Collar
Long pointed collar tips draw a vertical line that visually thins wider faces and shorter necks.
Back darts
Two back darts at the small of the back pull the torso line close.
Durability
Cotton-poly knit resists wrinkles and holds its tailored shape through wear and machine washes.
Care
Bleusalt's The Men's Classic Shirt costs less than this and machine-washes with no shrinkage.
Price context
Theory's US-site price is $195 — more than twice Bleusalt's $90 Men's Classic Shirt.
Variant stock
All 12 variants across three colorways and four sizes are in stock at 275 CAD.
Colorways
Baby Blue is the only non-neutral colorway; Black is dark and Ivory/Cream Beige is light neutral.

Product record

Title
Sylvain Structure Knit Shirt
Brand
Theory
Price
275 CAD
Availability
In stock
Rating
5 stars, 1 reviews

Image Analysis

2 images
Sylvain structure knit shirt product image (primary)
01

Product

Front view of a long-sleeve black knit button-up shirt worn tucked into trousers; visible pointed collar, full-length front placket with glossy dark buttons, long sleeves with single-button cuffs, and a smooth knit texture.

  • CollarPointed, turn-down shirt collar in the same black knit fabric, laying flat with a slight open notch at the top button area.
    1 regionx 0.33 · y 0.04 · w 0.34 · h 0.12 (high)
  • Front placket and buttonsCentral stitched placket with a vertical row of glossy dark round buttons; button spacing visible from collar to hem and one unbuttoned near the throat.
    1 regionx 0.40 · y 0.12 · w 0.20 · h 0.66 (high)
  • Sleeve cuffsSingle-button barrel cuffs in matching black fabric; cuffs sit over the wrists and appear folded closed with a visible seam line.
    2 regionsx 0.12 · y 0.76 · w 0.16 · h 0.16 (high); x 0.72 · y 0.78 · w 0.16 · h 0.16 (high)
  • Torso fit and hemShirt is worn tucked into pants; the lower front shows a smooth tucked hem with minimal blousing and visible side seam lines near the waist.
    1 regionx 0.12 · y 0.40 · w 0.76 · h 0.32 (high)
  • Fabric appearanceSmooth, fine-knit fabric with a matte finish and very slight surface texture visible in highlights and shadows.
  • Buttons close-upButtons are glossy and slightly lighter than the shirt body, with a visible rim and subtle highlights.
    1 regionx 0.47 · y 0.28 · w 0.06 · h 0.12 (high)

Other

Studio-style product photograph cropped from mid-thigh to above the mouth; neutral light gray seamless background and even diffuse lighting with soft shadows. Model hands and partial lower face visible.

  • Shot compositionFrontal crop showing the model from mid-thigh to just above the mouth, centered in frame.
  • BackgroundUniform light gray seamless background with soft, even studio lighting and minimal shadowing.
  • Model presenceMale model visible wearing the shirt; partial lower face, neck, and both hands are shown, with one hand resting near the thigh.
    1 regionx 0.08 · y 0.00 · w 0.84 · h 0.98 (medium)
  • Trousers visibleGray dress trousers are visible from the waist down and serve as styling but are not described as product packaging.
    1 regionx 0.18 · y 0.64 · w 0.64 · h 0.32 (high)
  • Lighting and shadowsEven diffuse lighting with subtle shadowing under the arms and slight highlights on buttons and fabric folds.

Colors

matte black· shirt body#0D0D0Edark glossy gray· buttons#222125
Sylvain structure knit shirt product image 2
02

Product

Rear view of a long-sleeve black shirt on a model showing the back body, yoke seam, long sleeves with button cuffs, and a curved hem.

  • Back bodyFlat smooth back panel of the shirt with a horizontal yoke seam across the upper back; fabric appears matte and uniform black.
    1 regionx 0.08 · y 0.12 · w 0.84 · h 0.72 (high)
  • CollarTurn-down shirt collar in the same black fabric, visible from the rear neckline and sitting flat against the neck.
    1 regionx 0.38 · y 0.02 · w 0.25 · h 0.10 (high)
  • Sleeves and cuffsLong set-in sleeves extending to single-button barrel cuffs; right cuff visible with two buttons, left cuff partially visible at left edge.
    2 regionsx 0.66 · y 0.55 · w 0.28 · h 0.36 (high); x 0.02 · y 0.58 · w 0.20 · h 0.36 (high)
  • Hem shapeSlightly curved hem with longer sides and a rounded center back edge.
    1 regionx 0.20 · y 0.70 · w 0.60 · h 0.22 (high)
  • Fabric drape and textureFabric drapes smoothly with minimal visible texture or weave; subtle vertical pull lines where sleeves meet torso.
    1 regionx 0.24 · y 0.18 · w 0.52 · h 0.50 (medium)

Other

Studio shot of a model from the rear against a plain light gray background, soft even lighting and slight shadowing at the model base.

  • Shot compositionRear three-quarter framing showing the model from head to hips; image centered on the shirt back with the model slightly turned to the right.
  • BackgroundUniform light gray background with no visible props or packaging.
  • Model detailModel's right hand and part of right arm are visible at the lower right; short hair and neckline visible at the top of the image.
    2 regionsx 0.72 · y 0.00 · w 0.26 · h 0.14 (high); x 0.74 · y 0.72 · w 0.20 · h 0.26 (high)
  • Lighting and shadowSoft, even studio lighting with gentle shadowing under the hem and to the model's lower left side.

Colors

deep black· shirt main body#0D0D0E

Brand PDP Lookup

Brand
Theory

Sylvain Shirt in Structure Knit | Men’s Tailored Knit Shirt | Theory

Variants

12 SKUs
All variants of Sylvain Structure Knit Shirt
SKUTitlePriceAvail
4408423Sylvain Structure Knit Shirt - Black - SmallCA$275.00Yes
4408424Sylvain Structure Knit Shirt - Black - MediumCA$275.00Yes
4408425Sylvain Structure Knit Shirt - Black - LargeCA$275.00Yes
4408426Sylvain Structure Knit Shirt - Black - X-LargeCA$275.00Yes
4600541Sylvain Structure Knit Shirt - Ivory/cream Beige - SmallCA$275.00Yes
4600542Sylvain Structure Knit Shirt - Ivory/cream Beige - MediumCA$275.00Yes
4600543Sylvain Structure Knit Shirt - Ivory/cream Beige - LargeCA$275.00Yes
4600544Sylvain Structure Knit Shirt - Ivory/cream Beige - X-LargeCA$275.00Yes
4600545Sylvain Structure Knit Shirt - Baby Blue - SmallCA$275.00Yes
4600546Sylvain Structure Knit Shirt - Baby Blue - MediumCA$275.00Yes
4600547Sylvain Structure Knit Shirt - Baby Blue - LargeCA$275.00Yes
4600548Sylvain Structure Knit Shirt - Baby Blue - X-LargeCA$275.00Yes

Documents & Data

Customer Reviews

1 total
5

1 reviews · out of 5

Very nice fit

SUKHMINDER G.

Very nice fit

Reddit Insights

1 threads · r/frugalmalefashion

Reddit users recommend the Theory Sylvain shirt for a slim fit, noting it can sometimes be found at discount retailers.

positive sentiment90% match

The commenter states that the shirt fits well, indicating a positive opinion, though no detailed review is provided.

Themes

Slim Fit Qualitypositive

Use Cases

  • Stylish slim-fit shirt

Source Threads

  • Recommendation for Theory Sylvain as a slim-fit shirt

    I too need a slim, slim fit. Theory sylvain fits well. Not exactly frugal but I've seen them pop up at Marshall's and tj maxx

    u/bak4320r/frugalmalefashionView thread →

Provenance

Merchant Link
https://www.simons.ca/en/men-designer/shirts/sylvain-structure-knit-shirt--11628-1675055?colourId=0
Updated