The ultimate heat regulating performance base layer by HELLY HANSEN constructed with smart thermal mapping technology and featuring the best of Lifa® technologies in the women's H1 Pro Lifa Seamless 1/2 zip top.

H1 Pro Lifa Base Layers use thermal mapping and the Lifa® technologies by HELLY HANSEN to precisely control your body temperature, giving you the right amount of warmth in high intensity scenarios. The Women's H1 Pro Lifa Seamless 1/2 Zip features a half zipper and a snug, high performance fit.