The Berghaus Womens Super Short Sleeve Zip Neck Tech T-Shirt is a great base layer essential perfect for a spontaneous climb or a couple of days scrambling to the peak Comfort should start from the first layer to the top and with this high performance tech tee that s no exception It works in harmony with your body to help keep your climate under control as ARGENTIUM reg PRO technology reacts to the physiology of your body It becomes extra cooling and breathable when you heat up and works to be more protective when you start to cool down