Stay warm with the Pro Thermal Jacket where you need it most. The jacket is made from windproof material and features inserts of an innovative insulating inner lining with octagonal yarn fibers that better trap heat and release warmth without overheating. The open ventilation on the side panels further aids in temperature regulation, and a fluorocarbon-free DWR treatment provides protection against rain. The packable jacket fits into its own pocket and can be attached to your bike, making it the ideal companion for changeable conditions. Additional features include elastic sections at the waist hem and sleeve cuffs to ensure the jacket stays in place.