About this item EXPANDABLE CAT BACKPACK：The backside of this cat backpack carrier is designed with a large expandable space, which makes pets to rest in a larger space and be more comfortable. This pet backpack carrier fits up to 18 lbs small dogs medium cats MULTIPLE ENTRANCES: This small dog backpack carrier has entrances on the front, sides, and top for pets to enter and exit. Multiple mesh windows make fresh air to circulate and cool the inside of the pet backpack to prevent your pet from overheating inside PET-FRIENDLY DESIGN: This cat backpack carrier has a pet safety leashes inside, pets will not run around when traveling. Unique pet zipper design makes that pets cannot open the zipper from the inside. The soft suede mat at the bottom allows pets to stay and sleep comfortably inside FUNCTIONAL & CONVENIENT: The pet backpack carrier has side pockets for some pet supplies. Comfortable shoulder straps reduce pressure on the shoulders. There is a luggage sleeve on the back, which can be placed on the suitcase. This cat backpack is TSA standard, fits most Airline Approved under seat. Please note: Due to different flight standards, please double check your airline requirements before traveling SUITABLE FOR DIFFERENT OCCASIONS: This cat backpack is perfect for traveling, going to the pet hospital, grooming, or picnic, You don't have to leave your pet alone at home anymore, this pet backpack carrier allows you to spend more time interacting with your pet › See more product details