Having a pack at the ready whenever the need arises is possible with Splash 15. It is essentially a waterproof, roll-top stuff sack with ultralight shoulder straps. It can be tucked away in a bike bag, backpack, glove compartment, shoulder bag or pants pocket. Weighing just 3.7 ounces, but providing 15 liters of carrying capacity, we've found Splash 15 to be surprisingly useful. As a beach pack, light hiking pack or even as a shopping bag. On backpacking or camping trips, it doubles as a stuff sack for clothing or a light sleeping bag, making its net weight a delightful zero due to its ability to do more than one task.