Backpacker April 09 declares that the Osprey Jib 35 represents a sea change in comfort, features and durability among youth backpacks.. Fits a variety of backs, thanks to its generous torso-length adjustment: just rip it, adjust it and stick it. Pack is sized to fit kids approximately 10 to 14 years old. To ensure a healthy and comfortable carry, loaded pack should not be more than 15 to 20 percent of childs body weight. AirScape backpanel features three sections of ridged foam and a central air chimney for increased ventilation. Running down the sidewall, peripheral rods anchor to load-lifter straps and hipbelt, actively transferring load and resisting sag. Top-loading design gives you easy access to the packs contents two zippered pockets in lid let you stash maps and small items. ErgoPull hipbelt closure provides extra cinching leverage-drawing tension along top and bottom, not through the center-relieving hipbone pressure. Zippered pockets on hipbelt let you stash small essentials, such as a digital camera, snacks, lipbalm and sunblock. Front stretch pocket is ideal for stowing jacket, hat and other often-used essentials. Large stretch-woven side pockets hold your water bottles and organize other small gear items. Hydration-compatible design features reservoir sleeve and a drink tube exit port for on-the-go hydration reservoir sold separately. Bottom of pack features a small zippered compartment to hold built-in raincover, which is tethered for security.