Pet Backpack Dimensions: 12.6" L x 11.4" W x 16.5" H. Perfect for dogs up to 15-pounds, or cats up to 18-pounds. Easily fits cats, small dogs, and most other small/medium-sized pets! Please make sure your pet sits within 14.5 inches overall height and 12 inches wide Breathable & Perspective: Three side was made of PVC mesh for the carriers. Well ventilated design for optimal airflow and checking on pet Reduce shoulder weight: This cat carrier backpack comes with chest buckles which helps to reduce the burden and keeps the shoulder straps from slipping while pet moving Keep your pet comfortable: Removable cosy mat for easier cleaning and let your pet enjoy it inside Last Long Using and Easy Storage: Our premium pet carrier is quite scratch-resistant and sturdy for long lasting use. You can also rest assured that it is strong enough to stand up to the scratches or gnawing of your pets