Arcteryx Altra 75 Backpack - Men's

218109 Features: Sized ideally for multi-day adventures and featuring an extendable collar for additional capacity; padded bottom and reinforced high wear areas Create a unified, stable structure that forms a direct link between bag and body with the AC2 suspension system that uses durable, weatherproof fabric bonded directly to the shoulder straps, adjustments, and hipbelt Loads are spread over large areas of contact in the suspension system and backpanel by use of Vapor thermoforming technology that anatomically conforms the components to your body Reduced weight and increased support in the most critical area with the the MonoFrame foam backpanel that is thinner and lighter yet connects the load to your back more efficiently; features removable plastic and aluminum stays Adjust the breathable, mesh-covered foam shoulder straps both vertically and horizontally for the most dialed in fit; pivoting hipbelt with Load Transfer Disc for flexible support and occipital cavity to cradle your head Load up the main compartment and stay organized elsewhere with an extendable top lid with two zip compartments, a map pocket, internal hydration pocket and port, and key clip Keep at-reach gear or clothing close by in the kangaroo pocket, 2 stretch mesh side pockets, or with use of the micro daisy chains Compact and stabilize your load using the four external compression straps; padded compression wings give more storage configurations Specifications: Capacity: 4577 cu in to 5004 cu in (Regular to extended); 4821 cu in to 5248 cu in (Tall to extended) Weight: 5 lb 1 oz (Regular): 5 lb 5 oz (Tall) Fits torso: 18 to 21 inches (Regular); 20 to 23 inches (Tall) Material: nylon Frame material: aluminum Access: top to panel Number of pockets: main compartment + 7 pockets