strategically patterned to be both comfortable and breathable Full-length, two-way U-zip provides easy access to the top, sides and bottom of pack External stuff-it pocket with an S/R buckle for cinching down the front panel Cinch-top opening Removable top lid with an internal, secure-zip pocket with a key hook Two secure-zip hipbelt pockets Two Stretch-Mesh Water Bottle Pockets Internal water bladder pocket Side compression webbing straps Trekking-pole and ice-axe carry Removable frame sheet Sternum strap Bottom compression webbing straps can either cinch down the pack or hold a larger item such as a sleeping pad