Derek Lam 10 Crosby's Ralph blazer is crafted of vegan leather. This tailored style showcases peak lapels, ruched long sleeves, and flap pockets at the waist. Peak lapels Long sleeves Single-button front Waist flap pockets Polyurethane Dry clean Imported SIZE & FIT About 25.5" from shoulder to hem Model shown is 5'10" (177cm) wearing US size 4. Selloff Women's - S/o W Collections > Saks Off 5th. Derek Lam 10 Crosby. Color: Black. Size: 8.