CAPACITY, COMFORT AND EXTREME PORTABILITY. The ICEMULE Traveler™ is like nothing you’ve ever seen before. It is built to be the most accessible, easy-to-carry soft-sided cooler around. Ice Mule's exclusive Bowhead Top™ opens wide and stays that way, so you can get what you want, when you want, hassle-free. Their 100% waterproof PakShield™ top zipper keeps your back dry and our exclusive butterfly strap makes carrying the Traveler™ a snap. And, as the name suggests, this cooler even doubles as incredibly durable luggage for your adventure travels.