Derek Lam 10 Crosby crepe trousers. Approx. measurements: 10" rise; 34" inseam; 16" leg opening. Mid-rise; golden grommet trim. Hidden hook-zip fly. Side slip pockets. Back besom pockets. Slim fit through flared legs. Cotton/spandex. Lining, polyester. Imported. About Derek Lam 10 Crosby: Derek Lam made his debut at NY fashion week in 2002 with a collection of chic and exceptional clothes, created in the heritage of American sportswear. Since then, Derek has been discovered by many women around the world who turn to him for his precision and fit, luxury fabrics, and the assurance that they will always find an interesting point of view within the collection.