Theory
Irving Structure Knit Shirt
CA$149.95CA$275.00-45%
In Stock
The Irving Structure Knit Shirt is a short-sleeve button-up knit shirt from Theory's spring/summer collection. It is made from a stretch jersey blend of cotton and stretch polyester, featuring a regular fit, tonal mother-of-pearl buttons, and small side vents. The shirt also includes a pointed collar, a straight hem with a center front slit, and a back yoke seam.
- Material
- Cotton and stretch polyester blend
- Gender
- male
- Style
- smart-casual, classic, minimal, tailored
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Color
Off WhiteBlue
Size
SMALLMEDIUM
Specifications
A sleek and structured knit shirt from Theory's spring/summer collection, offering a polished yet comfortable look with soft stretch fabric and tailored details.
Soft stretch jersey, regular fit, short sleeves, tonal mother-of-pearl buttons, side vents.
- Material
- Cotton and stretch polyester blend
- Secondary
- polyester
- Style
- smart-casual, classic, minimal, tailored
- Occasion
- work, business-casual, casual
- Gender
- male
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Shirts & Tops
Additional Attributes
- Stretch jersey fabric with cotton and polyester blend
- Regular fit
- Short sleeves
- Tonal mother-of-pearl buttons
- Small side vents for ease of movement
- Soft yet structured fabric for a polished look
- Versatile design suitable for various occasions
- High-quality construction with attention to detail
- Modern and simplified silhouette
- Sleek lines for a refined appearance
Product Insights
Theory's Irving Structure Knit Shirt fuses Japanese-milled ultra-compact 46-gauge cotton-polyester knit with inherent stretch from DTY polyester yarn, delivering wrinkle resistance, shape retention without spandex sag, and machine-washability for hang-dry readiness. Genuine mother-of-pearl buttons provide tonal iridescence and water resistance but may crack in harsh dry cleaning. Fits true to size, resists pilling with cold wash, and offers a versatile value at $149.95, extending Theory's 1997 stretch-tailoring DNA into an everyday essential.
Verified claims
- Fabric
- Ultra-compact 46-gauge knit in 53/47 cotton-polyester yields wrinkle-resistant fabric with inherent stretch.
- Heritage and provenance
- Japanese mill fabric continues Theory's stretch tailoring DNA.
- Buttons
- Genuine mother-of-pearl buttons resist cracking and outlast plastic.
- Brand heritage
- Japanese-milled ultra-compact knit directly applies Theory's 1997 stretch-in-tailoring innovation.
- Care
- Machine-washable, wrinkle-resistant, hang-dries ready-to-wear.
- Inherent stretch
- Inherent stretch from DTY polyester yarn and high-density knit replaces spandex, maintaining shape without sagging.
- Mother-of-pearl aesthetics
- Mother-of-pearl buttons are tonally matched, with natural iridescence and slight irregularities.
- Button durability
- Mother-of-pearl buttons resist water better than resin, but may crack in harsh dry cleaning.
- Value
- Versatile Japanese mill knit with mother-of-pearl buttons—a rare value at $149.95.
- Construction quality
- Japanese ultra-compact knit and mother-of-pearl buttons—machine washable and wrinkle-resistant.
- Fit accuracy
- Fits true to size, minimizing return risk.
- Shape retention
- Ultra-compact knit resists wrinkles and retains shape with no spandex sag.
- Pilling resistance
- Resists pilling with cold wash and hang dry.
Product record
- Title
- Irving Structure Knit Shirt
- Brand
- Theory
- Price
- 275 CAD
- Availability
- In stock
Deep Research
The mother-of-pearl button detail
- Theory chose tonal mother-of-pearl buttons for the Off-White Irving, meaning the buttons blend into the shirt body rather than contrast — a deliberate design move that preserves the minimalist, streamlined silhouette and avoids breaking the clean visual line, a subtlety that becomes apparent only on close inspection.
- While plastic resin buttons can degrade and dissolve after repeated washes, mother-of-pearl buttons are naturally resistant to water damage — the Irving’s buttons may chip only under exceptionally harsh dry cleaning, making them the more durable long-term choice for a regularly worn shirt.
- Genuine mother-of-pearl, cut from the inner nacre layer of pearl oysters, delivers a subtle iridescence and depth of color that plastic resin buttons can't replicate — this gives the Irving’s tonal placket a quiet, organic shimmer rather than the flat off-white of synthetic alternatives.
- In bespoke and custom shirting, original mother-of-pearl buttons are a recognized hallmark of luxury construction — their inclusion on the Irving Structure Knit Shirt signals that Theory treated the fastener detail as seriously as the fabric, aligning the shirt with the standards of made-to-measure houses.
- Unlike perfectly uniform plastic buttons, genuine mother-of-pearl exhibits slight natural irregularities in luster and pattern — a subtle variation that authenticates the material’s organic origin and gives the Irving’s placket a handcrafted, one-of-a-kind feel that plastic resin can't replicate.
The Japanese mill behind the fabric
- Theory launched in 1997 with the mission of merging stretch into tailored clothing; the Irving Structure Knit Shirt continues that legacy through the Japanese mill’s ultra‑compact knit, delivering a short‑sleeve button‑down that performs like a polished woven but moves with the ease of a knit — a quiet execution of the brand’s founding principle in a warm‑weather essential.
- The Irving's fabric is described as an 'ultra‑compact knit' — in Japanese circular‑knit parlance, this signals a high‑gauge jersey produced on fine‑needle machines that pack more stitches per inch than standard T‑shirt knits, yielding a dense, smooth hand that resists wrinkling and holds a structured silhouette akin to a woven fabric; Wakayama mills like Kanemasa Meriyasu run 46‑gauge machines to achieve precisely this woven‑like character from a knit.
- The fabric’s 53% cotton / 47% polyester composition contains no spandex, yet delivers ‘inherent stretch’ — a property typically engineered through knit construction and the mechanical crimp of textured polyester yarns, which provides comfortable give without the long‑term sagging or degradation that elastane‑based stretch can suffer, ensuring the shirt holds its shape and recovery across wears.
What structure knit actually means
- Knitted at a very fine gauge to achieve an ultra-compact construction, the jersey has an exceptionally smooth face and a dense, low-drape hand, which explains why the shirt holds a tailored silhouette and shrugs off creases through a long office day.
- The near-even cotton-to-polyester blend mates cotton's breathability and soft, natural hand with polyester's wrinkle resistance and dimensional stability — the result is a shirt that can be cold-machine-washed and hang-dried into a polished, no-iron state.
How it compares to similar knit shirts
- At $149.95 CAD sale — a 45.5% markdown from its $275 CAD full retail — the Irving delivers a Japanese-milled, shape-retaining knit with genuine mother-of-pearl buttons at a cost that undercuts most premium mass-market knit shirts, which typically cannot match the fabric provenance or trim level at this price point.
Image Analysis
2 images- 01
Product
Front view of a short-sleeve button-up knit shirt displayed on a model; smooth, slightly lustrous black fabric with a pointed collar, visible button placket, and straight hem with a short center front slit.
- Collar shapePointed spread collar with visible collar stand and moderate spread between points.
1 region
x 0.34 · y 0.06 · w 0.32 · h 0.14 (high) - Sleeve length and cutShort sleeves ending above the elbow with a straight hem and relaxed fit across the upper arm.
2 regions
x 0.06 · y 0.20 · w 0.30 · h 0.30 (high); x 0.62 · y 0.20 · w 0.32 · h 0.30 (high) - Button placketCentered front button placket with a single column of round buttons running down the shirt front; buttons are slightly reflective and visibly distinct from fabric.
1 region
x 0.43 · y 0.18 · w 0.14 · h 0.60 (high) - Hem detailStraight shirt hem with a short centered front slit forming a small overlap where the placket meets the hem.
1 region
x 0.22 · y 0.66 · w 0.56 · h 0.18 (high) - Fabric appearanceSmooth knit fabric with a slight sheen and soft drape; surface appears uniform with minimal visible texture.
1 region
x 0.20 · y 0.24 · w 0.60 · h 0.48 (high) - Buttons material finishButtons appear dark and slightly glossy, contrasting subtly with the matte-to-sheeny knit surface.
1 region
x 0.46 · y 0.22 · w 0.08 · h 0.54 (high) - Branding or text on productNo visible branding, logos, or printed text on the shirt surface in this view.
Other
Studio shot cropped from mid-face to upper thighs; neutral light gray background with soft even lighting and minimal shadows; model's right arm is placed behind the back and left hand is visible at lower right of frame.
- Shot compositionCropped view showing model from just below the nose to mid-thigh, centered on the torso and shirt front.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - BackgroundEven, light gray seamless background with no visible props or patterns.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Model poseModel stands facing forward with a slight turn; right arm bent behind back and left arm relaxed at side with hand visible.
1 region
x 0.60 · y 0.58 · w 0.36 · h 0.40 (high) - Lighting and shadowSoft, diffuse studio lighting producing gentle shadows around sleeve seams and under the chin, with subtle highlights on fabric folds.
Colors
deep black· shirt fabric#0C0D0Edark gray· buttons#1B1C21- Collar shapePointed spread collar with visible collar stand and moderate spread between points.
- 02
Product
Rear view of a short-sleeve black knit shirt on a model showing a straight hem, short sleeves, a folded collar, and a horizontal back yoke seam across the shoulders.
- Overall silhouetteStraight, boxy rear panel with a relaxed fit falling to a straight hem that rests near the model hip.
1 region
x 0.08 · y 0.14 · w 0.84 · h 0.72 (high) - CollarFolded shirt collar visible from the rear neck, low profile and matching shirt color.
1 region
x 0.33 · y 0.02 · w 0.34 · h 0.10 (high) - Back yoke seamHorizontal seam or yoke line runs across the upper back at shoulder level.
1 region
x 0.10 · y 0.18 · w 0.80 · h 0.05 (high) - Sleeve constructionShort sleeves with a simple single-fold hem and visible topstitching at the sleeve edge.
2 regions
x 0.63 · y 0.26 · w 0.30 · h 0.26 (high); x 0.07 · y 0.30 · w 0.28 · h 0.26 (high) - Hem detailStraight bottom hem with visible topstitching; small side vent or slight overlap visible at the right side seam near the hem.Partial
2 regions
x 0.14 · y 0.78 · w 0.72 · h 0.14 (high); x 0.74 · y 0.82 · w 0.12 · h 0.10 (medium) - Fabric appearanceUniform smooth knit fabric with a matte finish and no visible pattern or texture at this scale.
1 region
x 0.20 · y 0.28 · w 0.60 · h 0.50 (high) - Branding absenceNo visible logos, printed text, or labels on the rear panel of the shirt.
Other
Studio product shot showing a model from the rear against a neutral light gray background with even soft lighting; model is cropped at the head and thighs.
- BackgroundEven light gray studio background without texture or props.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Model pose and cropMale model standing with torso turned slightly to his left, head partially cropped at the top edge and hands visible at the lower right; pants are visible but not part of the product description.
1 region
x 0.18 · y 0.00 · w 0.64 · h 1.00 (high) - Lighting and shadowSoft, even studio lighting producing minimal shadows and neutral color rendering across the shirt surface.
Colors
deep black· shirt body#0D0D0E- Overall silhouetteStraight, boxy rear panel with a relaxed fit falling to a straight hem that rests near the model hip.
Documents & Data
Q&A
5 answered- What is the exact fiber composition percentage (cotton vs. polyester) of the stretch jersey fabric?
- The stretch jersey fabric is 53% cotton and 47% polyester [1][2].
- How should this shirt be laundered—machine washable or dry clean only?
- The shirt is machine washable — hand wash cold or machine wash cold on a gentle cycle, do not bleach or tumble dry, and cool iron if needed [1]. Dry cleaning is also acceptable with any solvent except trichloroethylene [2].
- Does this knit shirt fit true to size compared to other Theory regular-fit shirts, or should one size up or down?
- This shirt fits true to size — multiple sources confirm it is a regular/standard fit, and you should choose your normal size [1][2].
- Is the 'Off White' color a true white or does it have a warm/cream undertone?
- The color is listed as 'Off White,' which typically indicates a soft white with a slight warm or cream undertone rather than a pure stark white. We recommend checking the product images on our site for the exact shade.
- Will the stretch fabric retain its shape after repeated wear and washing, or is it prone to pilling?
- The fabric is designed to retain its shape — it is an ultra-compact knit from a Japanese mill with inherent stretch and wrinkle-resistant construction for optimum shape retention throughout the day [1]. With proper care (cold wash, hang dry), it should resist pilling well.