Durable RuffWear dog harness. XS. For dogs with girth 17-22in (widest part of ribs behind the front legs). Adjustable straps. Secure fit. Buckles into the car seatbelt for safety when traveling with your dog. Was just slightly too big along the belly length for my 17in girth yorkie mix, so I am relisting this harness. Ideal for a larger small dog to small-medium size dog.