Using this dog harness is easy. Just let your dog step into it and adjust the straps to fit snugly around your dog's body. Make sure it's not too tight or too loose. Before you buy, always measure your dog's girth to get the right size. When you're done using it, you can use a damp cloth to wipe it clean and let it air - dry. Keep it in a cool, dry place to maintain its quality. And remember, the matching leash is sold separately, so you can pair it up according to your needs.