Made of durable, breathable and lightweight polyester and sandwich mesh fabric, Foodie Time collection is fully adjustable around the neck and belly for a perfect fit. HugSmart harness is equipped with a stainless D ring for leash attachment. The easy-to-use design makes it a good choice for walking or running. Features: • Made from durable polyester fabric. • Fully adjustable harness around neck and belly ensures a custom fit. • Soft sandwich mesh padding for extra comfort. Size: Extra Small: Neck Girth:9.5″, Chest Girth:11″-16″ Small: Neck Girth:12.5″, Chest Girth:13″-20″ Medium: Neck Girth:16″, Chest Girth:16″-23″ Large: Neck Girth:19″, Chest Girth:22″-30″