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.
Anna M.
My favorite new online storeEverything I've purchased from Italist.com is excellent. Highly recommended. Perfect price point and fast, easy delivery. Thank you for what you do for us! Anna
Nicole F.
Thank you ItalistI purchased a great Marni bag which I live! It came fast and I am very happy with the Italist customer service team that responded to my inquiry and were very kind. I’m satisfied with my shopping experience and will shop here again. Thanks!
Jordann F.
Great purchase for concertA little edgy Parisian and a lot of quality style. The Isabel Marant tee was perfectly cool and comfortable paired with the cross body Moncler bag which was a great choice for hands free dancing to Coldplay. And both pieces were on sale!!!!!
Alexis D.
Best prices, selection, and shipping speed!Awesome selection, great options on price, easy to navigate website, and faster than expected delivery
Excellent shopping experience!