Why It's CoolIt's so simplea single strap secures the floating lid, and that's all you see looking at the front of this bag. Not to fear; you get ice-ax loops, daisy chains, and compression straps down the sides, but the absence of front clutter is refreshing. » The suspension is equally simple: a lightweight, flexible framesheet with one aluminum stay down the centerjust right for sub-40-pound loads. » Climbers will appreciate the presence of gear loops on the hipbelt. » Back-panel padding is configured to provide a spine-cooling void, yet still spreads comfort across the back. » See that nifty alloy geometry on the pack front? Buckles replace most of the traditional plastic. Just slip on a loop of webbinga spare design that saves a few grams.Hmmm . . .Torso length isn't adjustable, so long and short bodies might not carry this pack as comfortably.