TACTEL is a nylon 66 microfiber that dries eight times faster than cotton. It's also at least twice as soft and 20% lighter than most fabrics. The suppleness and softness of TACTEL help minimize chafing. Perfect for layering. 87% tactel nylon 13 % lycra quick drying does not have thumb holes pit to pit measures 18 inches length measures 21 inches color is light blue very good used condition