Some ultralight packs are just nylon sacks with straps. But the Vaude Versametric Ultralight Backpack has a few extras thatll keep you humming as you head down the trail. Its padded hip-belt pivots with your hips, which means the pack doesnt wobble and sway as you walk, and your joints get less worked. You can adjust the torso length on the fly so you get an optimal fit, and compression straps hold your load near your body. A beefy front zipper opens vertically for easy access to top and bottom of the main compartment, and you can remove the floating lid when you dont need its extra pocket space. External gear attachments hold luxury items such as trekking poles and a sleeping pad.