Founded in Norway in 1877, Helly Hansen continues to develop professional-grade apparel that helps people stay and feel alive. The LIFA stay warm technology you love with the patterns you can't ignore. HH LIFA Light is a performance base layer, delivering light weight insulation and comfort for everyday use and high performance activities. HH LIFA light constructed with 100% LIFA fibre is quick-dry, very breathable and super lightweight. Continually perfected over the last 40 years, LIFA Stay Warm technology is the unique ingredient of all Helly Hansen base layers. Warm. Dry. Comfortable. LIFA moves moisture away from the skin, allowing you to stay warm, dry and comfortable. The fabric is based on a yarn technology that's been tested and developed with the help of professionals making their living in some of the world's harshest environments. HH Warm is a 2-layer construction combining LIFA Stay Dry Technology and 100% pure merino wool, making it the ideal base layer for all activities in cold weather. Staying dry is important to stay warm and comfortable.