Pettom Dog Saddle Bag Backpack Pet Tripper Hound Bag for Outdoor Travel Walking Hiking Camping(Black, M) - Convenient pockets for carrying food, water, and gear for you and your pet wherever you go. - Medium Size,Chest Girth 27"- 32",Stomach Size 16-22,Neck Size 20-24Suitable Weight for Pet 40lb-61lb. - Stylish, Lightweight and Washable,Made of R/S PU/420D PU;The PU mesh in the middle is breathable and cooling, bring your loved dog comfortable feelings. - Neck circumference is adjustable;The bag inner have sandwich air net, very comfortable. - With light reflection stripe on the backpack,you can see your dog's activities on night.