Theory is an American clothing brand that specializes in high-end trousers. The label developed an innovative stretch fabric for its first women's pants and later applied similar technology to its men's collections. These simple, chic, functional designs are essential wardrobe staples.
Apply Filters to your selection for more specific results.
Customer stories
Join thousands of shoppers discovering the thrill of luxury finds at italist. Real reviews, genuine luxury, always at unmatched prices.
Alicia K.
Love shopping my favorite brandsLove shopping my favorite brands from Italist website. The orders always reach on time and beautifully packaged. Professional company I Highly recommend.
Kathleen A.
A wonderful shopping experience!So many times I’ve seen items of interest on italist and I finally decided to purchase some amazing Prada boots that I’d never seen elsewhere. They shipped here in a flash and they are superb! I will definitely be back for more beautiful items.
Anna L.
Professional site with excellent serviceFast delivery, fair prices and excellent service. Have used italist two times and absolutely pleased everytime. Could wish for more bags in Bottega Veneta and even more “saldi”, but really can’t complain :-)
teddy b.
favorite place to score designer dealsI always cross-shop and find the things I like on italist for cheaper, plus they ship so quick!! Love.