Theory Official Site | Contemporary Clothing for Women and Men

Skip to main content Skip to footer content

Login before checkout to check if any member coupons are available in your account. Eligibility may vary. LOGIN NOW

Welcome Offer | Sign up to enjoy special offer on your first full-price purchase. SIGN UP NOW T&C apply.

Clearance Sales | Buy 2+ sales items to enjoy extra savings. SHOP WOMEN SHOP MEN T&C apply.

New Arrivals

Back
- Women
  - Shop All New Arrivals
- Men
  - Shop All New Arrivals
- Women's New Arrivals
- Men's New Arrivals
- New Arrivals
  
  Shop Women
- New Arrivals
  
  Shop Men
Women

Back
- New + Now
- Clothing
  - View All
  - Jeans
  - Pants
  - Blazers, Jackets + Vests
  - Dresses
  - T-Shirts
  - Tops
  - Outerwear
  - Skirts
  - Suits
  - Sweaters + Cardigans
- Bestsellers
- Sale
  - Last Chance
- Washed Twill
  
  Shop Now
- Pant Guide
  
  Shop Now
Men

Back
- New + Now
- Clothing
- Accessories
  - Hats, Gloves + Scarves
- Bestsellers
- Sale
  - Last Chance
- Pant Guide
  
  Shop Now
- World of Bilen
  
  Shop Now
Online Exclusive

Back
- Women
  - View All
- Men
  - View All

Wishlist

Shop By

New Arrivals

Back
Women

Back
Men

Back
Online Exclusive

Back
- Women
  - View All
- Men
  - View All
Theories Magazine

Sign In / Register

Order Tracking
Store Locator

Clear

Sign In / Register

Sign In
Register

Clear

Sorry, we could not find any matching results.

Trending Products

Button-Back Shirt in Relaxed Poplin

Button-Back Shirt in Relaxed Poplin

null ~~Price reduced from to~~ NT$ 10,400

Shell Top in Silk Georgette

Shell Top in Silk Georgette

null ~~Price reduced from to~~ NT$ 7,600

Purchase 2 Pieces to Unlock Bundle Price

Shell Top in Silk Georgette

Shell Top in Silk Georgette

null ~~Price reduced from to~~ NT$ 7,600

Purchase 2 Pieces to Unlock Bundle Price

Tiny Tee in Organic Cotton

Tiny Tee in Organic Cotton

null ~~Price reduced from to~~ NT$ 3,250

Purchase 2 Pieces to Unlock Bundle Price

Exclusive Color

Tiny Tee in Organic Cotton

Tiny Tee in Organic Cotton

null ~~Price reduced from to~~ NT$ 3,250

Purchase 2 Pieces to Unlock Bundle Price

Mayer Trousers in Stretch Wool

Mayer Trousers in Stretch Wool

null ~~Price reduced from to~~ NT$ 9,500

Tiny Tee in Organic Cotton

Tiny Tee in Organic Cotton

null ~~Price reduced from to~~ NT$ 3,250

Purchase 2 Pieces to Unlock Bundle Price

Draped Midi Dress in Washed Twill

Draped Midi Dress in Washed Twill

null ~~Price reduced from to~~ NT$ 15,600

Pleated Wide-Leg Pant, 30'' in Admiral Crepe

Pleated Wide-Leg Pant, 30'' in Admiral Crepe

null ~~Price reduced from to~~ NT$ 10,800

Wide-Leg Pull-On Trousers in Admiral Crepe

Wide-Leg Pull-On Trousers in Admiral Crepe

null ~~Price reduced from to~~ NT$ 12,100

Purchase 2 Pieces to Unlock Bundle Price

Raffi 5-Pocket Trousers in Neoteric Twill

Raffi 5-Pocket Trousers in Neoteric Twill

null ~~Price reduced from to~~ NT$ 8,450

Purchase 3 Pieces to Unlock Bundle Price

Treeca Pull-On Trousers in Admiral Crepe

Treeca Pull-On Trousers in Admiral Crepe

null ~~Price reduced from to~~ NT$ 10,400

Sign Up for 15% Off*

Join our mailing list for our latest updates and enjoy 15% off your first full price order. Learn more about our privacy policy here.

forms.newsletter.successresult

Customer Care

My Account
Track My Order
Returns & Exchanges
Shipping & Payments
Size Chart & Alterations
FAQs

About Us

About Us
Stores

Contact Us

Mon-Fri: 9am-6pm GMT (excluding holidays)
Email

Site Map

Terms of Use

Privacy Policy

Customer Care

My Account
Track My Order
Returns & Exchanges
Shipping & Payments
Size & Alterations
FAQs

About Us

About Us
Stores

Contact Us

Mon-Fri: 9am-6pm GMT (excluding holidays)
Email

Legal

Terms of Use
Privacy Policy
Exclusions

© 2026 Theory. |

Site Map

Exclusions

WELCOME OFFER
(1) Promotional Period: From April 1, 2024 until further notice. (2) Eligibility: Customers who successfully subscribe to Theory Newsletters during the Promotional Period (“Eligible Customers”). (3) Designated Store in respect of this Promotion: The new Theory Online Store at hk.theory.com, tw.theory.com, sg.theory.com and au.theory.com (collectively “Theory Online Stores”). (4) How to enjoy this Promotion: Eligible Customers can enjoy 15% off on regular-priced products at Theory Online Stores (subject to the Excluded Products as defined below) (the “Discount”) by entering the promotional code at checkout. The promotional code would be sent, via email, to Eligible Customers upon successful newsletter registration. (5) General Terms and Conditions: The Discount only applies to the first order placed by Eligible Customers on Theory Online Stores. The Discount does not apply to the purchase of Theory Project products, Bundles and permanent/core items (the “Excluded Products”). The Discount cannot be used in conjunction with any other discounts, promotional offers and coupons (including but not limited to Theory VIP discounts/Theory VIP Birthday discounts, Credit Card Year-Round Discount and Theory CRM Coupons). The Discount cannot be transferred nor exchanged for cash or any other gifts or coupons. Theory reserves the right to amend these Terms and conditions without prior notice. Theory reserves the right of final decision in case of any dispute.

BUNDLE PROMOTION
(1) Promotional Period: The Promotional Period is from 1 July, 2025 until further notice. (2) Designated Store in respect of this Promotion: Theory Online Store at hk.theory.com, tw.theory.com, sg.theory.com and au.theory.com (collectively “Theory Online Stores”). (3) How to enjoy this Promotion: During the Promotional Period, all customers can enjoy an additional discount upon purchasing, as the case maybe, 2 or 3 items of the same style (as may be designated by Theory from time to time) in any size or color (collectively the “Designated Items”) in one single transaction at Theory Online Stores (collectively the “Discount”). The Designated items, and the number of Designated Items required to be purchased to unlock the Discount, will be specifically marked on Theory Online Stores. Customers are required to add the Designated Items into bag to unlock the amount of the Discount. The Discount will automatically apply at checkout. (4) General Terms and Conditions: The Discount cannot be used in conjunction with any other discounts, promotional offers and coupons (including but not limited to Theory VIP discounts/Theory VIP Birthday discounts, Credit Card Year-Round Discount and Theory CRM Coupons). The Discount cannot be transferred nor exchanged for cash or any other gifts or coupons. Theory reserves the right to amend these Terms and conditions without prior notice. Theory reserves the right of final decision in case of any dispute.

GOLDEN WEEK PROMOTION
(1) Promotional Period: The Promotional Period is from 27 April, 2026 to 5 May, 2026 (both days inclusive). (2) Designated Store in respect of this Promotion: Theory Online Store at hk.theory.com, tw.theory.com, sg.theory.com and au.theory.com (collectively “Theory Online Stores”). (3) How to enjoy this Promotion: During the Promotional Period, all customers can enjoy the following discounts (collectively the “Discount”) upon meeting the following designated spending threshold in one single transaction at Theory Online Stores: (1) NT$2,500 off upon a single net spending of NT$18,400 on any designated full-priced products (collectively the “Designated Products”); and (2) NT$5,300 off upon a single net spending of NT$28,500 on any Designated Product. The Discount will automatically apply at checkout. (4) General Terms and Conditions: The Discount applies to the Designated Products only. The Discount cannot be used in conjunction with any other discounts, promotional offers and coupons (including but not limited to Theory VIP discounts/Theory VIP Birthday discounts, Credit Card Year-Round Discount and Theory CRM Coupons). The Discount cannot be transferred nor exchanged for cash or any other gifts or coupons. Theory reserves the right to amend these Terms and conditions without prior notice. Theory reserves the right of final decision in case of any dispute.

Forgot your Password

Provide your account email address to receive an email to reset your password.

Email Address:

null

Sign in or create an account to add to your wishlist

Sign In
Register

Sign in with Google Sign up with Google Sign in with Apple Sign up with Apple or

Sign In

Email Address

Password

Remember Me

Sign in with Google Sign up with Google Sign in with Apple Sign up with Apple or

First Name:

Last Name:

Email Address:

Confirm Email Address:

Password

Confirm Password

Phone

Birth Date

Year

Gender

Female

Male

I'd like to hear from Theory

I agree to the terms and conditions. Learn more