A camp necessity, this waterproof, 43-liter backpack with an origami construction and a roll-top closure transforms into a rugged cooler when you add ice and a six pack. A 9-hook closure even doubles as a bottle opener.FEATURESUltra-durable, water resistant, 43-liter backpackRoll-top closure ensures a dry seal in any weatherMain compartment features origami construction, which reduces the number of seams to assure water resistanceInsulated pack body9-hook closure doubles as a bottle openerShoulder straps have daisy chains for added functionality