About the Brand
Theory is a New York-based contemporary fashion brand founded in 1997 by Andrew Rosen and Elie Tahari. The brand was built on the idea that women (and later men) needed comfortable, high-quality, and impeccably fitting clothes for the modern working life.
Famous for its "Stretch" fabrics and minimalist, architectural silhouettes, Theory has become a go-to for professional wardrobes. The brand offers a complete collection of tailored apparel, clean-lined footwear, and sophisticated accessories that emphasize quality and timeless design over passing trends.
Key Facts
Founded
1997
Headquarters
USA
Product Type
Unisex
Data updated: 2025