An unbeatable value, this versatile jacket insulates with a fast wicking, polyester. Key Features of the Sierra Designs Microlight Shell Jacket: Reverse Coil Center Front Zipper 2 Hand Pockets 1 Zippered Interior Chest Pocket with Earbud Portal Elastic Cuffs Includes Stuff Sack 100% Polyester Brushed Tricot Lining Center Back Length 24" (L) Weight 13 oz Microlight Accelerator (800 WP) 100% Polyester, Water-Resistant Finish, Shell: 3.04 oz/yd² (103 g/m²), Lining: 2.54 oz/yd² (86 g/m²)