When you compare our external frame packs to some of our competitors, youÕll quickly notice that you get more features and a lower price with ALPS É without sacrificing quality. As ALPSÕs reputation for quality packs has grown, weÕve had numerous requests for external packs, and for 2010, weÕve designed 2 models that are worth checking out. The Zion has a sleeping bag compartment and top loading access. There are various pockets to keep your gear organized and important items handy. The padded shoulder straps have multiple positions so you can adjust the pack to fit your body. The features found on the Zion make this pack top-of-the-line! Features at a glance: Hydration Compatible Top Loading Sleeping Bag Compartment Lower Door - #10 Zipper Hold-open bar Large Front Pocket Multiple Zippered Side Pockets Mesh Pocket on Lower Side Pockets Large Mesh Water Bottle Pocket Spindrift Collar with Draw Cord Top Lid Lash Tabs Ice-axe Loop Daisy Chain with Carry Handle Multiple Shoulder Strap Positions Padded Mesh Waist Belt Padded Shoulder Straps Vented Lumbar SupportSpecs: Color: Olive Fabric: Nylon Ripstop Capacity: 3900 cubic inches Weight: 4 lbs. 15 oz. Torso Range: 17" to 24" Waist Size: 28" to 40"