This high-insulation fleece uses Polartec Thermal Pro and features Polartec Power Stretch in the armpits and cuffs for enhanced mobility. The zippered pockets on both sides have a mesh lining, which also functions as ventilation. The unique knitting method ensures breathability, offering the key feature of being "warm but not stuffy." The cuffs are in a lumberjack style, with thumbholes for excellent hand warmth. This fleece balances high insulation and breathability, making it ideal as a mid-layer for sports in cold weather, such as mountain climbing and skiing, where you tend to sweat (more than you'd expect). Color: Dark Green