ICEMULE coolers are small enough to be carried on your back like a premium backpack, making them perfect for adventurous activities. The single backpack sling strap on the Classics provides superior comfort and ease of use, and the small size means that you'll never have to worry about leaving your cooler behind. With a variety of colors and designs to choose from, ICEMULE coolers are the perfect way to keep your drinks old and your hands-free.