Backpack style pet carrier perfect for small pets. Can wear on your back or as a front facing carrier, has adjustable waist and shoulder straps. New with tags. Dimensions approximately 11.5 inches by 9 inches, 16 inches tall at highest point along back of carrier. Airline approved (but as always, check with your specific airline about requirements for pet travel!) In my opinion, it is best for small cats and dogs. This doesn't really work for my chonky cat. She needs a larger duffle bag style carrier to be comfortable.