Polartec Alpha

Polartec® Alpha® Dynamic insulation: The primary insulation layer among experienced outdoor enthusiasts for nearly two decades, Polartec® fabrics are available in a variety of unique textures and weights designed specifically to enhance performance in a variety of environs. Polartec® Alpha® was originally developed for the U.S. Special Forces, who needed advanced insulating material in their combat uniforms. This new technology regulates core body temperature during both dynamic and static activities, eliminating the need to shed or add layers.