Includes a quick snap buckle on both the shoulder and belly straps to make it easier to get the harness on and off your dog. * Soft-but-strong nylon and 4 adjustment points provide maximum comfort and a reliable fit. * Complementary color of the belly strap makes it easier to identify each strap, while keeping the overall look pleasantly color-coordinated. You can quickly see which strap goes over the shoulders, and which goes under the belly. * Deep Purple Shoulder Straps - Black Belly Strap * Medium 3/4" Straps - Girth 21-28" measure snugly around rib cage just behind front leggs.