Developed for the Norwegian Ski Federation, this H1 LIFA® Pro base layer uses smart thermal mapping, our LIFA® technologies and wool to precisely control your body temperature in high-intensity scenarios. The H1 LIFA® Pro Seamless 1/2 Zip features a half zipper, laser cut holes in your hottest areas, and a snug, high performance fit. Unisex H1 PRO LIFA® Seamless Ski Race Top