Helly Hansen Warm Flow High Neck Half Zip Women’s Running and Outdoor Top This Helly Hansen Warm Flow High Neck Half Zip Women’s Running and Outdoor Top combines Lifa Stay Dry technology and Merino wool to keep you warm and dry during all activities. Providing HH Warm this half-zip top is a 2-layer construction combining Lifa Stay Dry technology and Merino wool. Merino wool works hard to keep you warm and the Lifa Stay Dry technology wicks sweat as it’s produced then transfers it to the outer layers of the fabric where it can be easily evaporated, ensuring you stay warm and comfortable. In addition, this baselayer in constructed with the unique Lifa Flow technology that delivers super quick drying next to the skin. Constructed with flatlock seams this half-zip top provide chafe-free workouts eliminated any skin irritation or friction that standard stitching causes. A high cut neck offers extra protection to the chin and neck from the elements whilst a zip guard prevents the zip coming into contact with the skin. Elasticated cuffs provide a nice feeling when on and prevent weather entry to the arms.