We wriggled and scraped through boulder caves on New Hampshire's Six Husbands Trail, and the Asana didn't get hung up or show any wear. The contoured shoulder straps and hipbelt, paired with Mammut's stiff yet flexy butterfly frame, supported epic-day loads and still moved with our bodies. The streamlined designa top-loading main compartment and plenty of gear loopswill please minimalists. 3.5 lbs, 2,135 cu in; mammut.ch
Bonus: Tool attachments accommodate an ice ax, ski poles, and more.
Bummer: It's a chore to get a Luna bar into the tiny hipbelt pockets, and the sewn-on lid means you can't overstuff it.