Design & Details: Removable floating lid with zippered pockets to organize storage of smaller items FlapJacket built-in to protect packed gear when top lid removed Trekking pole attachment for hands-free storage Stretch mesh energy-gel side pockets with dual access for water bottles or gear Web loop attached to top lid for increase exterior gear storage Bungee tie-off for ice axe Removable sleeping pad and compression straps on side Cord attachment for exterior accessory storage 15 mm sternum strap with attached safety whistle Secure ErgoPull closure 4 mm lightwire alloy frame Breathable mesh backpanel with 3D tension and side ventilation Seamless layered mesh for enhanced comfort 210D and 100D high tenacity nylon with 100D high tenacity nylon triple check dobby Warranty Information: Backed by Osprey's All Mighty Guarantee that repairs any product for any reason from any era