Unlike common handheld pet carriers, this marsupium pet carrier can be strapped to your chest or carried like a backpack, providing a secure and comfortable way to transport a small pet, while leaving your hands free. The pet bag supports up to 24 lbs. and is made from unscratchable, waterproof, and UV protected, PVC-backed nylon that expands outward from 60 " sq. to 144" sq. of interior space, allowing your pet to sit up, turn around, and curl up without restricting your movements or the pet's. A mat made from nylon fleece and poly fiber padding provides a warm cushion during cold ambient temperatures and remains cool to the touch during the summer months, while windows on top and on the front of the bag allow your pet to safely poke its head and provide constant airflow. The pet carrier has a zippered front pocket, a phone pocket, and the bag straps can be positioned to cross diagonally along your back, providing optimal support when walking or riding a bike. The bag also attaches to a car seat. Hand washable. 12" H x 12" L x 12" W. (3 lbs.)