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Essential T-Shirts + Polos

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Theory Wardrobe

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Pants + Shorts

T-Shirts + Polos

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Shirts

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Essential T-Shirts + Polos

Equal parts comfortable and polished, this season’s tees and polos are uniquely suited to helping you transition from the office to vacations. From shape-retaining polos to tees with enhanced elasticity and breathability, discover our edit of must haves for warmer weather ahead.

Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton

Essential Tee in Cosmos Slub Cotton

Price reduced from S$ 145.00 to S$ 87.00
Receive a Theory KeepCup upon net purchase of SGD650
Bestseller
Ryder Quarter-Zip Polo in Relay Jersey Ryder Quarter-Zip Polo in Relay Jersey Ryder Quarter-Zip Polo in Relay Jersey Ryder Quarter-Zip Polo in Relay Jersey Ryder Quarter-Zip Polo in Relay Jersey

Ryder Quarter-Zip Polo in Relay Jersey

Price reduced from S$ 320.00 to S$ 195.00
Receive a Theory KeepCup upon net purchase of SGD650
Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton Essential Tee in Cosmos Slub Cotton

Essential Tee in Cosmos Slub Cotton

Price reduced from S$ 145.00 to S$ 87.00
Receive a Theory KeepCup upon net purchase of SGD650
Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton Bron Polo Shirt in Cosmos Slub Cotton

Bron Polo Shirt in Cosmos Slub Cotton

Price reduced from S$ 185.00 to S$ 110.00
Receive a Theory KeepCup upon net purchase of SGD650
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Living in Linen

Light, effortless, go-anywhere styles.

Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen

Clinton Blazer in Good Linen

Price reduced from to S$ 995.00
Receive a Theory KeepCup upon net purchase of SGD650
Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen

Curtis Drawstring Pant in Good Linen

Price reduced from to S$ 465.00
Receive a Theory KeepCup upon net purchase of SGD650
Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen Clinton Blazer in Good Linen

Clinton Blazer in Good Linen

Price reduced from to S$ 995.00
Receive a Theory KeepCup upon net purchase of SGD650
Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen Curtis Drawstring Pant in Good Linen

Curtis Drawstring Pant in Good Linen

Price reduced from to S$ 465.00
Receive a Theory KeepCup upon net purchase of SGD650

The Pant Guide

Zaine Pant

in Organic Cotton

Slim-straight with classic details, our signature office-to-weekend pant is now available in organic cotton.

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Curtis Pant

in Good Linen

Polished but deceptively comfortable, this crisp linen take on the our on-the-go style is warm-weather ready.

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Zaine Pant

in Precision Ponte

A technical take on the classic chino, this signature style offers superior stretch and breathability for all-day comfort.

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Curtis Pant

in Precision Ponte

Polished but deceptively comfortable, this performance style is the ultimate on-the-go pant.

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Zaine Short

in Organic Cotton

The short version of our signature slim-straight style with classic details.

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Raffi 5-Pocket Pant

Our technical twill alternative to denim, this polished take on a 5-pocket boasts stretch and water resistance.

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Mayer Pant

A classic dress pant with a sharp profile, cut from wool with the perfect amount of stretch.

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Terrance Jogger

Optimized by a stretch performance fabric, this seasonless jogger is designed for maximum movement.

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Larin Drawstring Pant

The classic dress pant made comfortable with a hidden drawstring closure.

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New Arrivals
Tie-Front Blouse in Cotton-Blend Tie-Front Blouse in Cotton-Blend Tie-Front Blouse in Cotton-Blend Tie-Front Blouse in Cotton-Blend Tie-Front Blouse in Cotton-Blend
Quick Add

Tie-Front Blouse in Cotton-Blend

Price reduced from to S$ 465.00
Receive a Theory KeepCup upon net purchase of SGD650
Sleeveless Shirt in Cotton-Blend Sleeveless Shirt in Cotton-Blend Sleeveless Shirt in Cotton-Blend Sleeveless Shirt in Cotton-Blend Sleeveless Shirt in Cotton-Blend Sleeveless Shirt in Cotton-Blend
Quick Add

Sleeveless Shirt in Cotton-Blend

Price reduced from to S$ 425.00
Receive a Theory KeepCup upon net purchase of SGD650
Slim Vest in Striped Admiral Crepe Slim Vest in Striped Admiral Crepe Slim Vest in Striped Admiral Crepe Slim Vest in Striped Admiral Crepe Slim Vest in Striped Admiral Crepe Slim Vest in Striped Admiral Crepe
Quick Add

Slim Vest in Striped Admiral Crepe

Price reduced from to S$ 560.00
Receive a Theory KeepCup upon net purchase of SGD650
Wide Leg Pull-On Pant in Crushed Satin Wide Leg Pull-On Pant in Crushed Satin Wide Leg Pull-On Pant in Crushed Satin Wide Leg Pull-On Pant in Crushed Satin
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Wide Leg Pull-On Pant in Crushed Satin

Price reduced from to S$ 485.00
Receive a Theory KeepCup upon net purchase of SGD650
New Arrivals
Sarior Tee in Cotton-Linen Sarior Tee in Cotton-Linen Sarior Tee in Cotton-Linen Sarior Tee in Cotton-Linen Sarior Tee in Cotton-Linen Sarior Tee in Cotton-Linen
Quick Add

Sarior Tee in Cotton-Linen

Price reduced from to S$ 320.00
Receive a Theory KeepCup upon net purchase of SGD650
Brenan Polo Shirt in Cotton-Linen Brenan Polo Shirt in Cotton-Linen Brenan Polo Shirt in Cotton-Linen Brenan Polo Shirt in Cotton-Linen Brenan Polo Shirt in Cotton-Linen Brenan Polo Shirt in Cotton-Linen
Quick Add

Brenan Polo Shirt in Cotton-Linen

Price reduced from to S$ 310.00
Receive a Theory KeepCup upon net purchase of SGD650
Clinton Blazer in Textured Nylon Clinton Blazer in Textured Nylon Clinton Blazer in Textured Nylon Clinton Blazer in Textured Nylon
Quick Add

Clinton Blazer in Textured Nylon

Price reduced from to S$ 935.00
Receive a Theory KeepCup upon net purchase of SGD650
Ryder Tee in Relay Jersey Ryder Tee in Relay Jersey Ryder Tee in Relay Jersey Ryder Tee in Relay Jersey Ryder Tee in Relay Jersey
Quick Add

Ryder Tee in Relay Jersey

Price reduced from to S$ 225.00
Special Offer For 3

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Discover Summer 2024

Essential Tees + Polos


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Living in Linen

Go-anywhere styles as light and effortless as spring itself.

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The Pant Guide

A range of styles for every occasion, featuring fresh cuts and bestselling favorites.

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Theory Wardrobe

One capsule. Endless possibilities.

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Theory Project

Discover the new collection by designer Lucas Ossendrijver.

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Spring Remix

Shed your deep-winter layers and reach for detail-oriented pieces worthy of the spotlight.

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Spring Dress Codes

Essential systems for getting dressed.

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Precision Ponte

A performance fabric engineered for comfort and polish around the clock.

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Essential Trios

Shop our most iconic styles in three at a time in any size or color for a better value.

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Theory for Good

We're committed to creating sustainable solutions for our products, advancing our community, and reducing our impact on the planet.

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