The Zbrivier Dog Carrier Airline Approved, Zbrivier Large Cat Carrier for Medium Cats Under 25, Durable Large Pet Carrier for Cats Dogs with Upgrade Lockable Zippers and Fleece Pad-Large is an ideal way to travel with your pet. With a large capacity of 20 inches, this carrier can accommodate most medium sized dogs and cats. It features four opening doors for easy access and ventilation, as well as a safety inner leash that prevents your pet from escaping. The carrier is made of durable metal and wool for a strong yet soft interior.