Clevermade 18 Can Insulated Backpack Cooler Bag $20 at Amazon
Amazon has the Clevermade 18 Can Insulated Backpack Cooler Bag (Charcoal) for $21 - 5% off coupon (click "Save an extra" box) =
$20 with free shipping on $25+ or with Prime. This backpack features a bottle opener, outer zippered storage and mesh side pockets.
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