The Helly Hansen Women's Lifa® Merino MW Half Zip is the perfect base layer to wear while snowboarding or skiing. This Half Zip sports a unique 2-in-1 base layer with 100% merino wool combined with LIFA® Stay Warm Technology in a 2-layer construction. Additionally, this Half Zip delivers all the great benefits of merino wool fibers plus the unique properties of technical LIFA® fibers. The Helly Hansen Women's Lifa® Merino MW Half Zip is made to keep you warm and cozy all winter long.