It's absolutely crucial to save energy in the backcountry, and how much you save can be the difference between pushing yourself to the next peak or calling it quits. So, to help you get there and beyond, the Karakoram Air Flow Highback with Dual Ride Stride ensures that not one step you take is wasted. Thanks to a -eight-degree forward lean setting, Ride Stride creates a more natural touring form with longer strides and more glide to get you up with less fatigue. All you have to do is just simply rotate the forward lean adjuster 90-degrees for your pre-set Ride Mode forward lean. Plus, the cored-out Dupont Zytel Air Flow Highback weighs next to nothing, and offers plenty of lateral flex and support, but without sacrificing any responsiveness.