Design & Cooler: Cooler includes 3L Fusion Group Reservoir with Tru(R) Zip Waterproof Zipper Reservoir conveniently stows behind the zippered back panel for easy storage Hose with spigot is accessible from the exterior of the pack through the flow port Tru(R) Zip Waterproof Zipper is waterproof, secure, simple to open and close, and provides easy access to inside contents Built-in carry handles and removable padded shoulder strap offer versatile carry options Overflow stuff pocket and secure zippered pocket provide convenient storage options Capable of fitting 16 cans with 12 lbs. of ice and a full reservoir Holds 22 lbs. of only ice