Latest Store Information | Isetan Shinjuku Men's Building 7th Floor
2022.06.17 update

Theory Latest Arrivals | Isetan Shinjuku Men's Building 7th Floor Men's Authentic


Founded in 1997 in New York by Andrew Rosen, Theory has revolutionized the contemporary market by creating modern and high-quality versions of wardrobe essentials. The brand offers a luxurious collection featuring items crafted from carefully selected materials and finished with exquisite silhouettes.

Latest arrival information

Friday, June 17th

Polo shirt: 11,000 yen
Cosmos Bron D
Product number: 02-2208100
Color: Carbon Black Sizes: XS, S, M, L, XL, XXL
*Larger sizes may be sold out.
Please be aware of this in advance.

Polo shirt: 11,000 yen
Cosmos Bron D
Product number: 02-2208100
Color: Plush Gray Sizes: XS, S, M, L, XL, XXL
*Larger sizes may be sold out.
Please be aware of this in advance.


This cut-and-sew top, with its appealing textured feel and lightweight construction, is knitted with a slightly tight tension, creating a clean and elegant impression. Its minimalist design makes it easy to mix and match with a wide range of outfits. When worn as an inner layer under a jacket, the neckline design adds a subtle accent. Made with high-quality cotton slub yarn, you can enjoy the rich texture of the fabric surface. This is a meticulously crafted item that pursues a unique softness and comfortable feel.


Polo shirt: 16,500 yen
Function Pique Precise Polo SF
Product number: 02-2201001
Color: Opal Gray Sizes: XS, S, M, L, XL, XXL
*Larger sizes may be sold out.
Please be aware of this in advance.

Polo shirt: 16,500 yen
Function Pique Precise Polo SF
Product number: 02-2208100
Color: Fossil Brown Sizes: XS, S, M, L, XL, XXL
*Larger sizes may be sold out.
Please be aware of this in advance.


This clean and stylish polo shirt features subtle yet sophisticated details. The tipping collar makes it versatile enough to be worn casually or dressed up. Its comfortable fit makes it ideal for active lifestyles. The luxurious texture adds a touch of elegance to any outfit. The fabric boasts high moisture-wicking and quick-drying properties, as well as antibacterial properties. The body is made from a blend of soft, lustrous Pima cotton and polyurethane, providing stretch and excellent breathability.
Monday, June 13th
Polo shirt ¥19,800 Item number: 02-2201003
Color: White/Black Sizes: XS, S, M, L, XL (Some sizes may be sold out. Please note.)

This polo shirt, with its sporty details, is perfect for active scenes. The simple yet refined fabric gives it a stylish look. The neat length is also appealing, as it works well tucked in or worn untucked. Made from a smooth rayon-based material, it boasts a soft texture, crispness, and minimal transparency. It's an easy-to-wear item that can be incorporated into both casual and dressy outfits.
Polo shirt: ¥17,600 Product number: 02-02-2201002
Colors: White/Baltic Navy/Black Sizes: XS, S, M, L, XL, XXL (Larger sizes may be sold out. Please note.)
This short-sleeved polo shirt is made from a rayon base blended with nylon and polyurethane, offering excellent stretch. It boasts a subtle sheen, beautiful color for a clean look, a perfectly opaque fabric even in white, and a smooth feel against the skin. Its versatility, suitable for both smart and casual occasions, is another attractive feature.


Friday, April 29th

We've received a new shipment of Theory 's long-selling "Eco Crunch" line, which features a highly breathable linen blend with rayon and polyurethane for added stretch. The new line includes a matching jacket and pants set, as well as a shirt-style jacket. We're also introducing a pullover T-shirt that offers a soft and comfortable feel, perfect for the coming season.


Jacket and suit set: ¥49,500
Eco Crunch Clinton Pash A
Product number: 02-2104008
Fabric: ECO CRUNCH
Style: CLINTON PA SH A
62% Linen, 36% Rayon, 2% Polyurethane

Pants set: ¥26,400
Eco Crunch Curtis B BE ST A
Product number: 02-2106012
Fabric: ECO CRUNCH
Style: CURTIS B BE ST A
62% Linen, 36% Rayon, 2% Polyurethane

The jacket has been designed to be worn like a shirt during warmer seasons, with the shoulder pads, interlining, and lining removed to create a slightly boxy silhouette. It's a garment that balances a changed lifestyle with current trends. The materials used include organic linen, which contains no harmful chemicals, as well as eco-friendly viscose rayon and recycled polyurethane, demonstrating a commitment to the environment.

The matching pants are drawstring pants. They have a relaxed silhouette that is perfect for the spring and summer seasons, with a slightly loose fit from the hips to the thighs and tapered towards the hem. They also have belt loops, making them easy to use for both casual and dressier styles.

Matching shirt set: 26,400 yen
Eco Crunch Selk SH A
Product number: 02-2104009
Fabric: ECO CRUNCH Style: SELK SH A
62% Linen, 36% Rayon, 2% Polyurethane


This shirt-style jacket is also from "Eco Crunch." Key design features include the box pockets at the hem and the contrasting panel on the chest. The subtle sheen and wrinkled texture characteristic of linen create a relaxed feel.

T-shirt: 9,900 yen
Cosmos Essential Tee
Product number: 02-2101006
Fabric: COSMOS
Style: ESSENTIAL TEE
100% Cotton


This pullover T-shirt features a distinctive textured surface and a special finish that ensures a soft and comfortable feel. Knitted slightly tightly for a clean look, it offers a natural fit that suits everyone. Made with high-quality cotton slub yarn, it has a smooth feel and comfortable wear. The fabric boasts a soft texture. It's also washable at home; please follow the washing instructions.

Wednesday, March 2nd

Jacket and suit set: ¥49,500
PRECISION PONTE CLINTON DPK WA
Product number: 02-2104003
Fabric: PRECISION PONTE
Style: CLINTON DPK WA (73% Nylon, 27% Polyurethane)
Pants set: ¥24,200
Precision Ponte Zaine SW A
Product number: 02-2106006
Fabric: PRECISION PONTE
Style: ZAINE SW A Nylon 73% Polyurethane 27%

Precision Ponte is a product that offers incredible stretchability beyond what its appearance suggests, and is full of surprises in every aspect, from comfort to ease of use. It has supple elasticity and strong recovery, providing a comfortable fit that does not restrict any movement, while maintaining a clean look that is suitable for business settings.

The material is a stretch nylon jersey that stretches in four directions—vertically, horizontally, and diagonally—created by weaving fine-gauge dull nylon (low-sheen nylon) and Lycra fibers using a special technique. It offers quick-drying properties, durability, and UV protection, and is an easy-care item that can be hand-washed at home.

Its greatest appeal lies in its combination of these individual functionalities at a high level.


Set-up jacket ¥44,000 Paper Nylon Euclid St A
Product number: 02-2104006
Fabric: PAPER NYLON
Style: EUCLID ST A
80% Nylon, 20% Polyurethane

Set-up pants ¥24,200 PAPER NYLON GAMME ST A
Product number: 02-2106010
Fabric: PAPER NYLON
Style: GAMME ST A
80% Nylon, 20% Polyurethane


This tailored jacket is made in Japan using ultra-lightweight fabric that boasts excellent stretch and durability. It's crafted from a nylon-polyurethane blend. The material's subtle sheen and beautifully tailored silhouette, adjusted for Japanese body types, give it a clean and sophisticated look. It's perfect for activewear, but also versatile enough for travel, business, and various other occasions.

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＊All prices include tax.
＊The information in this article is current as of the time of publication. Product information may be revised or changed without notice.
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For inquiries, please contact: Isetan Shinjuku Store, Men's Building 7th Floor, Men's Authentic, Tel: 03-3352-1111 (Main number)
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