Showman ® Large Multicolored Patchwork Design Waterproof Dog Blanket.442019L Showman Large Waterproof Dog Blanket with Reflective Binding and Stripes. This blanket is constructed of 600 denier rip stop waterproof poly, a 70 denier breathable lining and 200 gram poly fill insulation. Features adjustable belly wrap with quick grip closures, shoulder gussets to allow freedom of movement, a buckle front, and a cut out for the tail. Measure your dog from the middle of the chest, around the side to the center of the tail.