a Lightweight pullover fleece with an asymmetrical half zipa TechStretch(TM) Aero Fabric fleece, a unique fiber featuring an innovative hollow structure designed to enhance insulation while maintaining quick drying and breathable capabilities, and weighs 50% less than conventional polyester materialsa Body-mapped PolartecA(R) inserts for additional thermal warmtha Hood with elastic opening for a secure fit, fits under a climbing helmeta 1 zippered chest pocket for storing small essentials FIT: SlimWEIGHT: 225 g / 7.9 ozMATERIALS: Main fabric: 47% recycled polyester, 53% polyester; Side panels and hood: 91% recycled polyester, 9% spandex; Reinforcement: 85% recycled polyamide, 15% elastane; Pocket lining: 100% recycled polyester