Enjoy the spaciousness of expandable pockets in which you can store extra goods like your keys, some snacks or a drink. Perfect adjustable straps and neck circumference, secure everything in place. Made of high quality 600D Oxford cloth. This breathable harness will fit your dog well. Perfect for walking, shopping, hiking and jogging. This backpack is suitable for 39 lb - 60 lb pets. Chest Girth: 27.6"- 31.9"; Belly Girth:16.1"- 21.7"; Neck Girth:20.0"- 23.6".