This pet carrier is fantastic in design for those who prefer to carry it like a backpack and provide a softer environment for their pets during short transports in town (e.g. for vet visits, etc). When not in use, this design can fold into a portion of its assembled size and when assembled, the carrier has enough room for a small pet to sit in comfort. This is bets for cats and small dogs. My cat actually likes to stay inside as if it were her new bed.