Sporty Jogging Vest is a safe and comfy harness and leash for small pets. It is made of durable, high quality nylon and is washable and colorfast. The Velcro and clip design makes it "EZ" on and "EZ" off. Small fits baby ferrets, rats and other small pets. Safest and most comfortable harness and leash "EZ" on and "EZ" off design using clips and velcro High quality nylon material Washable and colorfast . Size Neck Body SMALL 4-6 inches 8-10 inches MEDIUM 6-8 inches 10-12 inches LARGE 8-10 inches 12-14 inches X-LARGE 10-12 inches 14-16 inches *Colors may not be exactly as shown