The Helly Hansen LIFA range is built around the brand's proprietary base layer technology, using 100% Lifa hydrophobic polypropylene fibres that actively wick sweat away from your skin and keep it there. The result is a lightweight, fast-drying base layer that keeps you consistently dry and comfortable during high-output outdoor activities. Whether you're racing in heavy weather, hiking in the hills, or layering up for a winter sail, LIFA is the foundation of an effective technical clothing system.