To use this dog coat, simply place it over your dog's back and fasten the elastic hind leg straps. Make sure it fits snugly but not too tight. For night outings, the reflective side stripes will help keep your dog visible. When it gets dirty, you can machine - wash it on a gentle cycle. Avoid using harsh detergents as they may damage the waterproof and insulating properties. After washing, let it air dry. Store the coat in a cool, dry place when not in use to maintain its quality.