Theory Fleeces & Tracksuits for Men

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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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Customer stories
Discover the joy of luxury shopping with italist through the experiences of our valued customers. Read their stories and see why fashion enthusiasts worldwide choose italist for authentic, high-end finds at the best prices.
Maria K.
Great experienceI was very pleased with the quick delivery. My Fendi wallet on chain came packaged nicely with all the tags.
Oleksandra F.
Prada leather cardholderI loved it! It’s my first time ordering from the website and I can’t be happier. The item is original, the packaging was great, and the delivery was fast. I highly recommend! Great customer service too (I went to the chat and got all the answers to my questions)
Andrew M.
Triple Stich successI was looking for a pair of Zegna shoes that I saw at the mall here in Houston and italist had the same pair but saved me 33%. I am very happy with the service and quick shipping. It's always so much fun finding a great deal.
Richard L.
Dries van Noten T-ShirtWas so glad to find it on italist. Thank you for your speedy delivery. Will shop again at italist.

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