Granite Gear and Klymit Crown VC 60 pack frame.

Many lightweight packs ditch the frame to drop weight. This one-pound, 15-ounce, 60-liter pack can shed heft by using an air-filled frame that you can easily tweak from soft to firm to suit your preference. And while many super-svelte packs are just glorified duffels, this one retains a swappable hip belt, a vented back panel, multiple side and rear pockets, and a hydration port and sleeve. [$250; klymit.com]