Turning heads once again, the redesigned, lightweight Osprey Atmos 50 backpack now rests closer to the back while still providing unsurpassed ventilation. Top-loading design features a floating lid pocket to allow extensive gear storage. Features twin front slash pockets with water-resistant welded zippers, stretch-woven front and side pockets and zippered mesh pockets on hipbelt. Innovative Stow-on-the-Go trekking pole attachment allows you to stow and remove poles without removing pack. Osprey Airspeed suspension features an aluminum alloy frame and torsion rods for support and flexibility under heavy loads. Anchored in the lumbar area, the suspension system provides uniform pressure and comfort without annoying hot spots. Features gender-specific BioStretch fixed shoulder harness and hipbelt perforated, waffle-pattern foam saves weight and enhances breathability. ErgoPull hipbelt closure relieves hipbone pressure by spreading the tension along both the top and the bottom of the belt, not in a single line along the middle. Hydration-compatible design with drinking tube portholes reservoir sold separately fits in cavity behind mesh backpanel. Twin ice axe tool loops and bungee tie-offs let you lash on extra gear. Includes adjustable sternum strap and removable sleeping pad straps.