Polished stretch-cotton leggings in cropped silhouette Self waist Concealed back zip Rise, about 10" Inseam, about 26" Cotton/elastane Dry clean Imported Model shown is 5'10" (177cm) wearing US size 4 ABOUT THE BRAND Eight years after founding his eponymous brand, Derek Lam launched Derek Lam 10 Crosby in 2011, named after the address of his New York City office. Staying true to his downtown aesthetic, Lam designs feminine, relaxed pieces for all occasions. Contemporary Sportswear - Derek Lam 10 Crosby > Derek Lam 10 Crosby > Saks Fifth Avenue > Barneys. Derek Lam 10 Crosby. Color: Black. Size: 2.