FrontPet Expandable Airline Approved Pet Carrier with Padded Fleece Insert, Spacious Comfortable Durable Soft-Sided Carrier VERSATILE: FrontPet's Soft Sided Expandable Pet Carrier helps save space when you need it and provides extra room for your pet for comfort when traveling SPACIOUS: Soft Sided Pet Carrier has Spacious Dimension: (18L x 11W x 11H) - When expanded with mesh area open carrier measures 20.5" Wide DURABLE: This dog and cat carrier is for pets up to 13 pounds comfortably AIRLINE APPROVED: Expandable handbag allows your pet to travel with you on most major airlines. Best of all the expandable compartment can be opened once in flight so your pet has extra room to move and lay down, reducing stress on your pet while traveling COMFORTABLE: Ventilated top and expanding sides of the pet bag keeps your pet from feeling trapped or enclosed