This base layer top is made from a blend of 80% Merino Wool and 20% Polyester, offering a performance fabric that is both breathable and lightweight. It features a plain design with a half-zip fastening and a high-neckline, perfect for layering. The long-sleeved top is designed with anti-bacterial properties to keep you fresh and moisture-wicking technology to manage sweat. Available in various sizes, including XXS (33 in chest) up to 4XL (56 in chest).