Insulated Vest, Insulated for Cold Conditions Yes, Temperature Rating Down to 20 Degrees F, Material Nylon, Style Vest, Includes Lining Yes, Lining Material Nylon Taffeta, Fabric Weight 120g, Front Closure Type Zipper with Snap, Number of Outside Pockets 4, Number of Inside Pockets 2, Length 29 in, Minimum Chest Size 38 in, Size-Body Type Regular, Size M, Maximum Chest Size 40 in, Series 5705