Made with thru-hikers in mind, the Hyperlite Mountain Gear Unbound 40 backpack is everything you need and nothing you don’t. This pack is essentially waterproof, incredibly durable for the weight, and has convenient pockets galore. We put our Unbound pack to the test over hundreds of miles in the Sonoran Desert, and we think it’s a big win for long-distance hiking and ultralight backpacking.