Made of 600D nylon with a 300-gram lining. This waterproof blanket features a detachable neck, a gusseted front, double quick-release buckles with Velcro on the chest, nylon lining to prevent chafing, cross surcingles, elastic leg straps, and a tail flap. Sizing Guide: The upper size may vary. Therefore, use the lower size as the correct size when choosing this blanket.