First Class lightweight windbreaker has a 100% nylon outer shell for water repellency, and a cotton lining to keep you warm without weighing you down. Nylon Imported Cotton lining Zipper closure Machine Wash 100% Nylon Water Repellent Outer Shell Windbreaker Runs Large - Meant to be worn over other outerwear Security I.D. on front and back Soft inner lining for added warmth Reinforced slash pockets