Why It's CoolThe frame has all the components of a big-beast carriera framesheet, an aluminum stay, and twin fiberglass rodsbut each element is designed for medium duty, neatly hauling 35 pounds. The framesheet is punched full of holes to save weight and preserve flex. » It's superlight (three pounds three ounces) but doesn't require a degree in zealotry to pack, thanks to side water-bottle pockets, a hydration sleeve, and side and bottom compression straps. Those lower straps are a godsendcinch your tent to the bottom, freeing up room inside. A big mesh front pocket and signature Mountainsmith shock cords stow grab-it-quick items. » Sweet hipbelt design snugs from the sides, not the center, and creates a natural cupping shape for hipbones.Hmmm . . .The seam at the bottom of the hydration sleeve could usher leaks into your sleeping bag.