Zoom Backpack Airbak Zoom PH-03 Nylon Photography Backpack General Features: Black color Lightweight, high quality materials Multiple compartments for photography accessories Airbak technology built-in Heavy-duty air bladder: up to 100 lbs pressure resistance Holds air for 2-5 years without refill Volume: 1008 cubic inches Materials: 800D Nylon 1680D Ballistics