First seen in Mar 2026
Theory Regal Merino Relaxed Button Down In Brown
Photo: Bloomingdale's
First seen in Mar 2026
1/10
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THEORY
Regal Merino Relaxed Button Down In Brown

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THEORY
Regal Merino Relaxed Button Down In Brown

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Regal Merino Relaxed Button Down In Brown
175Login to see price 2 Offers
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175
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STRUCTURE KNIT IRVING SHORT SLEEVE SHIRT ECLIPSE

Fabric: Lightweight stretch knit. Collared neckline. Short sleeves. Button placket. Shell: 53% cotton/47% polyester. Wash cold. Imported, Vietnam. Measurements: Measurements from size M Length: 26.75in / 68cm Chest: 42.5in / 108cm

， THEOR4507810962

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Regal Merino Relaxed Button Down In Brown
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Theory Structure Knit Irving Short Sleeve Shirt Eclipse In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
245Login to see price
In Stock
245

REGAL MERINO RELAXED BUTTON DOWN

Theory Regal Merino Relaxed Button Down in Black. - size XXL/2X (also in S, M, L, XL/1X) Theory Regal Merino Relaxed Button Down in Black. - size XXL/2X (also in S, M, L, XL/1X) 100% merino wool. Dry clean only. Front button closure. Lightweight slinky knit fabric. THEO-MS283. Q0281704. Theory is a visionary concept for modern intelligent fashion forward people. Founded in New York and made by the finest of fabrics, this makes the working everyday person feel powerful, ready to face their day.

， THEO-MS283

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Relaxed Short Sleeve Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
125Login to see price
In Stock
125

RELAXED SHORT SLEEVE SHIRT

Theory Relaxed Short Sleeve Shirt.Color:Black.Size:XXL.Material:75% cotton/25% lyocell.Shirts.

， 5950411BLACK

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Relaxed Short Sleeve Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Standard Fit Point Collar Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
147Login to see price
In Stock
147

STANDARD FIT POINT COLLAR SHIRT

Theory Standard Fit Point Collar Shirt.Color:Black.Size:XXL.Material:100% wool.Shirts.

， 5950405BLACK

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Standard Fit Point Collar Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Relaxed Short Sleeve Button-up Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
125Login to see price
In Stock
125

THEORY RELAXED SHORT SLEEVE BUTTON-UP SHIRT

Refine your warm-weather wardrobe with this clean, minimalist button-up cut from a stripe-textured cotton blend. Front button closure Spread collar Short sleeves 75% cotton, 25% lyocell Machine wash, line dry Imported

， 8845127_BLACK - 001

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Relaxed Short Sleeve Button-up Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Button-down In Brown
Theory Regal Merino Relaxed Button Down In Brown
245Login to see price
In Stock
245

THEORY BUTTON-DOWN

Soft, lightweight and easy to wear, this short-sleeve button-up is rendered in breathable merino wool and punctuated with tonal buttons for a streamlined look. Front button closure Spread collar Short sleeves 100% merino wool Dry clean Imported

， 8845122_BLACK - 001

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Button-down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Button-down Sweater In Regal Wool In Brown
Theory Regal Merino Relaxed Button Down In Brown
135Login to see price
In Stock
135

BUTTON-DOWN SWEATER IN REGAL WOOL

This short-sleeve sweater features a spread collar, slightly dropped shoulders, and buttons up the front. A lightweight yet luxurious upgrade to an essential style, it’s knit in a fine-gauge rib texture using merino wool spun in Italy.

， TH_Q0281702_001_L0

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Button-down Sweater In Regal Wool In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
175Login to see price 2 Offers
In Stock
175
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MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT

Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported

， PROD191410538_BLACK

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
175Login to see price 2 Offers
In Stock
175
(2 Offers)
2Offers

MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT

Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported

， PROD191410538_ECLIPSE

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
175Login to see price 2 Offers
In Stock
175
(2 Offers)
2Offers

MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT

Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported

， PROD263400021_ECLIPSE

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Men's Irving Short Sleeve Shirt In Structure Knit In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Regal Merino Relaxed Button Down In Brown
Theory Irving Regular Fit Short Sleeve Shirt In Brown
Theory Regal Merino Relaxed Button Down In Brown
Bloomingdale's
185Login to see price
Sold Out
185

IRVING REGULAR FIT SHORT SLEEVE SHIRT

Theory Irving Regular Fit Short Sleeve Shirt.Color:Black.Size:XX Large.Material:100% Lyocell.Shirts.

， 5076400BLACK

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Theory Regal Merino Relaxed Button Down In Brown
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Theory Regal Merino Relaxed Button Down In Brown
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Theory Irving Regular Fit Short Sleeve Shirt In Brown
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Product Details
STRUCTURE KNIT IRVING SHORT SLEEVE SHIRT ECLIPSE
Fabric: Lightweight stretch knit. Collared neckline. Short sleeves. Button placket. Shell: 53% cotton/47% polyester. Wash cold. Imported, Vietnam. Measurements: Measurements from size M Length: 26.75in / 68cm Chest: 42.5in / 108cm
Measurements from size M Length: 26.75in / 68cm Chest: 42.5in / 108cm
Product Detail Provided by Shopbop - Purchase Now
Size Guide
REGAL MERINO RELAXED BUTTON DOWN
Theory Regal Merino Relaxed Button Down in Black. - size XXL/2X (also in S, M, L, XL/1X) Theory Regal Merino Relaxed Button Down in Black. - size XXL/2X (also in S, M, L, XL/1X) 100% merino wool. Dry clean only. Front button closure. Lightweight slinky knit fabric. THEO-MS283. Q0281704. Theory is a visionary concept for modern intelligent fashion forward people. Founded in New York and made by the finest of fabrics, this makes the working everyday person feel powerful, ready to face their day.
Lightweight slinky knit fabric
Product Detail Provided by REVOLVE - Purchase Now
Size Guide
RELAXED SHORT SLEEVE SHIRT
Theory Relaxed Short Sleeve Shirt.Color:Black.Size:XXL.Material:75% cotton/25% lyocell.Shirts.
Product Detail Provided by Bloomingdale's - Purchase Now
Size Guide
STANDARD FIT POINT COLLAR SHIRT
Theory Standard Fit Point Collar Shirt.Color:Black.Size:XXL.Material:100% wool.Shirts.
Product Detail Provided by Bloomingdale's - Purchase Now
Size Guide
THEORY RELAXED SHORT SLEEVE BUTTON-UP SHIRT
Refine your warm-weather wardrobe with this clean, minimalist button-up cut from a stripe-textured cotton blend. Front button closure Spread collar Short sleeves 75% cotton, 25% lyocell Machine wash, line dry Imported
Product Detail Provided by Nordstrom - Purchase Now
Size Guide
THEORY BUTTON-DOWN
Soft, lightweight and easy to wear, this short-sleeve button-up is rendered in breathable merino wool and punctuated with tonal buttons for a streamlined look. Front button closure Spread collar Short sleeves 100% merino wool Dry clean Imported
Product Detail Provided by Nordstrom - Purchase Now
Size Guide
BUTTON-DOWN SWEATER IN REGAL WOOL
This short-sleeve sweater features a spread collar, slightly dropped shoulders, and buttons up the front. A lightweight yet luxurious upgrade to an essential style, it’s knit in a fine-gauge rib texture using merino wool spun in Italy.
Product Detail Provided by Theory - Purchase Now
Size Guide
MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT
Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported
Product Detail Provided by BERGDORF GOODMAN - Purchase Now
Size Guide
MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT
Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported
Product Detail Provided by BERGDORF GOODMAN - Purchase Now
Size Guide
MEN'S IRVING SHORT SLEEVE SHIRT IN STRUCTURE KNIT
Theory "Irving" solid sport shirt Spread collar; button placket Short sleeves Slim, structured fit Curved hemline Cotton/polyester Machine wash, line dry Imported
Product Detail Provided by Neiman Marcus - Purchase Now
Size Guide
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About THEORY
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Theory was founded in 1997 on the principle that men and women want to feel comfortable and sexy in modern clothing. Theory is geared to answer the needs of a contemporary customer, one who has a demanding and versatile lifestyle. Sophisticated, urban, and discriminating, yet seeking comfort and value. Theory defined its customer as global, intelligent, and fashion-savvy. Placing a premium on fit and fabric quality, Theory created a collection of stand alone pieces that serve as the foundation of our consumer's wardrobe. Theory incorporated the successful merchandising models of American fashion companies, with the quality and craftsmanship of European fashion houses. By merging the two ideologies Theory has been able to deliver a superior product. Theory seized the technological opportunities available to spin Lycra into other fabrics, creating slimmer, more comfortable shapes. Theory's signature "stretch" fit developed a cult following and the Theory pant became a must-have for every woman's wardrobe.

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