Outsides 09 Spring Buyers Guide declares, its the suspension system-a superlight aluminum skeleton securing a mesh back panel-that makes the Exos stand out.. Further Outside explains, In addition to keeping the load taut and secure, the system allows for breezy ventilation.. Modified Airspeed suspension features an aluminum frame for support and a breathable mesh backpanel with side ventilation for cool comfort. Anchored in the lumbar area, the suspension system provides uniform pressure without annoying hot spots. Features gender-specific BioStretch fixed shoulder harness and hipbelt mesh-covered, slotted 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. Innovative Stow-on-the-Go trekking pole attachment allows you to stow and remove poles without removing pack. Top-loading design features a floating lid pocket another pocket under the lid further extends your gear storage options. Features 2 vertical zippered front pockets, a stretch-woven front pocket, side mesh pockets and zippered mesh pockets on hipbelt. Hydration-compatible design with drinking tube portholes reservoir sold separately fits in cavity behind mesh backpanel. Comes with superlight 7mm side compression webbing straps route the straps over or under side pockets. Thin tool loop and bungee tie-off lets you strap on an ice tool. Use the minimalist cord tie-off points to add a bungee cord for lashing on extra gear. Includes adjustable sternum strap and integrated sleeping pad straps.