Yeti's Hopper Backflip 24 Soft Cooler. Price is $299 in its website.
The Yeti Hopper Backflip 24 does it all and does it all extremely well with a tough-as-nails DryHide Shell, 100% leak-proof zipper, and insulation that can keep ice cold for several days. Yeti is one of, if not the, leading hard cooler brand, so it is no surprise they make the best backpack cooler.
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Yeti's Hopper Backflip 24 Soft Cooler. Price is $299 in its website.