Men's thermal short-sleeved top features soft, self-fabric ribbing at the neckline for added comfort. Constructed with interlocking stitches that form small air pockets to keep warmth in and cold out. Crafted from premium quality viscose, offering comfort and warmth. An essential piece for winter sports or any outdoor activity during the chilly winter season. The size guide is as follows: Small (S) 35-37 inches, Medium (M) 38-40 inches, Large (L) 41-43 inches, Extra Large (XL) 44-46 inches, 2X Large (2XL) 47-49 inches. The material is a blend of 50% polyester and 50% viscose.