YETI Hopper Backflip 24 Soft Sided Cooler/Backpack

Part cooler, part backpack, the Hopper BackFlip 24 is the perfect reason to extend your trek. It’s sizable enough to fit a day’s worth of drinks and food for you and your crew.
DRYHIDE SHELL – The Hopper’s high-density fabric is waterproof and resistant to punctures
COLDCELL INSULATION – Closed-cell rubber foam offers far superior cold-holding to ordinary soft coolers.
HYDROLOK ZIPPER – The toughest, highest-performing waterproof and leakproof cooler zipper in the world.
The BackFlip has an inside measurement of 12 5/8 x 6 ½ x 15 inches. Big enough to hold 20 cans with a 2:1 ice-to-can ratio.