Billion Dog Lumi-Jack Lighted Pet Vest Lighted Vest for Visibility, safety and fashion Dog Apparel Water resistant vest, Security and safety for your pet, Illuminating pet vest, Electroluminescent sheet technology Visibility and safety for evening run, hunting trip or backcountry hikes 11.41 inches to 13.77 inches chest, Bulldog, Schnauzer(mini), Pug, Cocker Spaniel, Poodle (Mini), Dachshund