The Honsie® Original is a full print, all in one, nylon lycra horse and pony cover. Perfect for keeping horses and ponies in pristine condition prior to competition or for use as a second skin to keep a horse or pony warm in the winter. Extra Small: 10hh to 12hh. Small: 12.1hh to 14.2hh. Medium: 14.3hh to 15.2hh. Large: 15.3hh to 16.2hh. Extra Large: 16.3hh to 17.2hh.