Supreme baselayer performance in a relaxed fit for versatile layering this berghaus mens ls zip tech tee is powered by argentium silver ion technology to keep you odour free all day and it wicks moisture like a dreamthis mens zip neck top is designed to provide the active performance of a baselayer in a more relaxed fit making it versatile for layering and great for everyday active wear as well as extreme adventuretheres no compromise on the comfort qualities youd expect from a berg