Hamilton Pet Adjustable Nylon Dog Harness Extra Small Moonstone GM SHA XS-MN 3/8 inch wide. Fits 10 through 16 inch chest. Features two adjustable slides that offer a truly custom fit for your canine companion. The snap-lock buckle and simple design of this harness make it quick and easy to take off and on. Two metal d-rings allow for easy leash attachment to provide control and security. Made of the highest quality nylon webbing and color coordinated stitching.