The 260 Zone Long Sleeve Half Zip is a medium-weight base layer that is ideal in cold weather conditions. The long sleeve top is made from 100% merino wool and has a slim fit. Merino wool is known for its insulating and temperature-regulating properties, but is also popular because it does not itch. The Zone LS Half Zip insulates the skin, breathes, and prevents unpleasant odours on active days. Thanks to the offset seams, you will not be bothered or irritated by a heavy backpack. The flat seams prevent irritation and the reinforcements under the arm allow the shirt to breathe where your body needs it. In the areas where more wear and tear occurs, reinforced pieces have been added for extra wear-resistance. Perfect as a base layer for on the slopes!