Rain or shine, cold or wet the Double Diamond Dog Coat offers superior protection in a variety of weather conditions. With its streamlined fit and sporty two toned design, your dog is sure to get noticed. The Double Diamond Coat is made from a water resistant treated nylon shell and a cozy fleece liner, which offers protection and comfort for your dog. Other features include 3M reflective piping to maximize nighttime visibility, leash access slit, reflective RC Pets label and easily adjustable Velcro closures. Sizes 8-20 features chest panel coverage, while sizes 22-30 have no chest panel for optimal fit. Available in sizes 8 to 30 and a variety of fun patterns and colors. To measure your dog for size use a soft tailors tape while your dog is standing. Girth equals the widest circumference around you re your dog s chest and the length is measured from collar to base of tail. If you dog falls between sizes, choose the larger size for more coverage. Size 8 fits a girth of 13 to 14-inch and a length of 8-inch. Best suited for small breeds such as the Chihuahua.