Defy gravity with the Atmos AG pack, complete with Anti-Gravity suspension for extra breathability and comfort on the trail. This pack boasts a superlight base weight at only 3.95 lbs and a contoured fit throughout the torso and hipbelt. The AG system, made from flexible mesh, allows air to flow between your back and the pack for an easeful trek on even the warmest, sweatiest of days. Finally, enjoy access to the main compartment via easy top zips, and room for smaller items in the front stash pockets. Convenience, simplicity, and comfort all in one. Features: Removable floating top lid Flap jacket to keep your gear under wraps, even without the lid Tool attachment Removable sleeping pad straps Compression straps Internal compression Trekking pole attachment Fit on the Fly(TM)hipbelt for your own fit Adjustable torso harness Anti-Gravity suspension