Theory Underwear & Nightwear for Women

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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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Underwear & Nightwear
Basques
Bodysuits
Bras
Camisoles
Chemises
Pajamas
Panties
Robes
Socks & tights
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On sale
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FW25
SS25
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Customer stories
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Maria K.
Great experienceI was very pleased with the quick delivery. My Fendi wallet on chain came packaged nicely with all the tags.
Sissy S.
Golden GooseExcellent service! The Golden Goose shoes I ordered arrived in about 4 days! From Italy to the US...amazing! I ordered two different sizes and had to return a pair and that process was easy and quick.
Christine L.
Great shoeOrdered a pair of GG trainers. They were exactly as described and shipping was real quick!
Adrienne H.
Thank you Italist!I am so happy I found Italist. I searched high and low for the exact style and color of a pair of high end glasses for my husband that were limited edition. I found them on Italist and didn't have to worry about authenticity. And the biggest plus is I saved $140.00 ordering from Europe. I received my item in 3 days from start to finish and I live in the U.S. Italist is now going to be my go to when I want luxury, savings and great customer service! Thank you Italist!
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