Dog harness. Made from durable nylon and soft padding. Ideal for everyday life and when performing sporty activities. 3 fold adjustable, making it a perfect fit harness. Sizing (width x adjustable belly): 0.6in x 15-18.9in, 0.6in x 17.7-22.4in, 0.8in x 20.9-25.6in, 0.8in x 23.6-30in, 1in x 28.7-37in, 1in x 31.9-39in.