GORE Wear M Windstopper Thermo Base Layer

The foundation of any kit is a moisture-wicking base layer. It determines how long you feel comfortable on the bike, and therefore, how long you ride. This tight-fitting, long-sleeve undershirt is made of windproof Gore Windstopper material at the front, sleeves, shoulders and kidney area keeps sweat off your skin to keep you cool on the way up as well as prevent wind chill on the way down. Minimal, flat-locked seams for next-to-skin comfort.