Groxkox Cat Carrier Backpack for Travel,Dog Carrier Backpack for Large cat, Small Dogs,Puppies Up to 20 Lbs,Expandable Cat Backpack for Outdoor Hiking,Pet Carrier Backpack,Cat Backpack Carrier (Blue)Brand: Groxkox Color: Blue Features: Expandable dimension: The carrier measures 17"L x 13. 5"W x 11"H, fits small and medium pets up to 20 lbs. Dual side expandable to 17 x 13. 5 x 36 inches Humanized design: Front and back sides are both expandable, increasing your pet's activity space by 200%. Six mesh ventilated designs provide good airflow and scenic views Strong quality: Made with 600D high quality Oxford material, lightweight, easy to clean, and