Marsupack Pet Carrier is a handy go-anywhere travel bag for very small pets. It extends outwards to allow space for your pet to move around. Made of unscratchable, waterproof, UV-protected Heavy Duty Fabric, it features claw-proof front and side windows and a safety leash to prevent your small pet from falling or getting out unintentionally. It can be carried as a backpack or front pack, and can be strapped to any car seat. The Marsupack includes a winter/summer reversible comfort mat.