SOL'S COMET, unisex round-neck sweatshirt, 80% organically grown cotton - 20% recycled polyester, french terry lining, 3 yarns, outside: 100% organic cotton french terry 280, set-in sleeves, 2x2 ribbed cuffs, collar and hem, cut and sewn, neck tape, jersey half moon inside collar.about sizes matching, please refer to the size chart in the product documentation section.