Description Product Description 218110 Features: Stay fresh and dry, even when you're moving quick, with the air-permeable, nylon-mesh covered AeroForm backpanel that provides next-to-body airflow for cooling comfort For a comfortable carry, the anatomically shaped shoulder straps and hipbelt feature breathable spacermesh to keep the air flowing; modular sternum strap aids in support Load up your gear and clothing via the top loading design, and keep items you need quick access to in the removable, extendable top lid that has 2 zippered compartments; size zipper access Stow water in your pack in the hydration bladder sleeve and run the house through the included HydroPort; modular hose clip on sternum strap Keep a rain jacket, water bottles, trekking poles, and other necessities close by with 2 stretch mesh side pockets, stretch mesh kangaroo pocket, and micro daisy chains Have your camera ready and waiting in either of the stretch mesh hipbelt pockets Compact and stabilize your load using the four external compression straps Specifications: Capacity: 2929 cu in to 3234 cu in (Regular to extended); 3112 cu in to 3539 cu in (Tall to extended) Weight: 3 lb 2 oz (Regular): 3 lb 3 oz (Tall) Fits torso: 16 to 19 inches (Regular); 18 to 21 inches (Tall) Material: nylon Frame material: aluminum Access: top to panel Number of pockets: main compartment + 8 pockets