Men's Helly Hansen LIFALOFT INSULATOR Jacket a lightweight, low profile, LIFALOFT™ insulated jacket. Can be worn as a midlayer or a stand-alone jacket. LIFALOFT™ is a revolutionary insulation technology that will keep you warm with less weight and bulk. After four years of development and thanks to a collaboration with the Swedish Ski Team, LIFALOFT™ has a 20% lighter warmth to weight ratio than comparable products. By combining Primaloft®’s extensive knowledge in synthetic insulation with our proprietary LIFA® fiber technology, LIFALOFT™ traps a maximum amount of air in a small space - making it warm, lightweight, and with less bulk. Plus, due to the hydrophobic properties of LIFA®, LIFALOFT™ has an inherent water repellency that will keep you warm, even when wet. LIFALOFT™ has a smaller carbon and water footprint than standard polyester and features Bluesign® approved fabric and PFC free DWR. It’s perfect for year-round adventures in all conditions.