A versatile and warm packable jacket The top dog of the warm and cozy jacket pack, the Prime Alpha Jacket is on the scene and ready to bring the heat. This exterior fabric of this versatile jacket is lined with warmth-regulating Polartec® Alpha® Direct insulation, which continually releases excess body heat buildup before you get damp and uncomfortable. If you want to get warm on those chilly nights out, this is a real, packable option. 4-way stretch exterior for ease of movement Polartec® Alpha® Direct active insulation to regulate warmth without overheating Elastic binding at hood, cuffs and bottom opening to adjust fit DWR coating to shred light moisture Full length center front zipper Pocket zippers to secure items MATERIALS Shell: 86% recycled polyester 14% spandex 4-Way Stretch Woven, 120 g Lining: 100% Polyester Polartec® Alpha® Direct, 95 g