The Hanjo Pets Expandable Cat Carrier Backpack is an airline approved pet carrier that is perfect for taking your cat or dog on the go. With a durable polyvinyl chloride construction and a thick and soft foam interior, this backpack provides plenty of room for your pet to sit and relax. The mesh windows allow for excellent ventilation and visibility, while the steel frames ensure that the backpack stays in place. The scratch-proof mesh also protects your pet from scratches or bites.