Pecute Pet Carrier Backpack, Expandable w/ Breathable Mesh for Dogs & Cats NEW This is the XL size: 19.3” by 15.7” by 12.9”, for cats that are 15.4lbs~24lbs; for dogs 13lbs~22lbs, and sitting height /15.6"~17.6" This pet backpack with an expandable back design gives your pet more space to rest and increases airflow, allowing your pet to move around more comfortably and reducing anxiety. 【 GREAT VENTILATION & VISIBILITY & COMFORT 】: To enhance comfort, the pet cushion is placed inside the bag's bottom and has a removable, washable cover. This ensures your furry friend has a spot to rest while on the go. Breathable mesh on every side. 【 ERGONOMIC DESIGN 】: Widened and padded design, adjustable shoulder straps help reduce the load and increase comfort, as well as adjustable chest and waist buckle design of the cat carrier backpacks to prevent shoulder strap deviation and maintain the stability of the pet puppy carrier. 【SAFETY & STORAGE 】: 1, Made of high-quality Oxford Cloth, waterproof, anti-scratch, and non-irritating, let your pet breathe freely and relax. Collar hook for safety . Pockets on both sides can store food, water bottle, poop bags.