Ladies, if you're plunging into the backcountry, bring along CamelBak's L.U.X.E. N.V. Efficient and compact, this system totes 100 ounces of liquid (more than 4 large water bottles) and sports thoughtfully distributed cargo space with internal organizers for tools and gear. The best part has to be the N.V. ventilated and articulated back panel. It keeps the pack off your back and moves with you to keep you cool and dry and makes carrying water and gear merely an afterthought. Comfort is assured with a women’s-specific S-Shape with D-Fit Suspension, too. The L.U.X.E. even has a weather-resistant media/electronics pocket, an XC helmet carrier and a stow-away pack cover.