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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.

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Join thousands of shoppers discovering the thrill of luxury finds at italist. Real reviews, genuine luxury, always at unmatched prices.

Self portrait dressI bought a self portrait dress, the delivery was very fast, I received it only 2 days after ordering it. Very pleased with my purchase.

Best selection, excellent customer service.Best selection, excellent customer service. Very easy to shop around the website and easy returns.

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.

Excellent purchases experienceI had purchase from italist twice and on both times every thing has been great. Thank you

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