600 denier ripstop waterproof poly outer shell with 200 gram poly fill. Breathable 210 lining. Double buckle front (large & extra large only, extra small, small and medium have one buckle), adjustable belly-wrap with "quick-grip" closures and cut out for tail. Shoulder gussets allow for freedom of movement. Measurements should be taken just like a horse blanket, from the center of the chest around to point of the hip, next to tail.