ICEMULE Traveler 35 Liter Backpack Cooler - Introducing the ICEMULE Traveler, a soft cooler like nothing you've ever seen before. Featuring the exclusive Bowhead Top, which opens wide and stays that way - so you can get what you want when you want, hassle-free. Plus you can rest easy with our 100% waterproof PakShield top zipper. And the 35-liter capacity means you'll be able to load it up with plenty of goodies. This cooler even doubles as incredibly durable luggage for your adventure travels.