Yens&reg; Fantasybag "eGREEN" Fold-Up Drawstring Cooler Backpack-Black,NCP-21 Material is biodegradable and recyclable making it eco-friendly Main compartment has a insulated heat-sealed lining The drawstring closure w/ adjustable shoulder strap allows it to be carried like a backpack A front zippered pocket for accessories. Size: 16" X 16" X 2.5" (Folded 8.5" X 8.5") Can be folded-up to compact size for easy storage and portability.