Product details:

A heavyweight baselayer shirt with optimized fabric zones for active performance, the men's winter zone long sleeve half zip is a technical top for skiing, winter climbing and other highly active days in cold conditions. The body features our bodyfitzone merino wool fabric with a touch of lycra for stretch. In the underarm panels we used lightweight eyelet merino mesh that actively controls temperature during high-output pursuits, and in the higher-wear areas around the elbows and forearms we added merino and polyester waffle jersey for added abrasion resistance. Flatlock seams throughout eliminate chafing during fast-paced days.