For heavyweight weekends or weeklong backpacking trips where comfort and ventilation are paramount, people know to reach for the Atmos AG 65. You'll forget how much you really packed with its AntiGravity suspension, delivering an incredible fit that seamlessly envelopes your back and hips in 3D-suspended mesh. From easy-to-use stretch mesh side pockets for water bottles, an internal reservoir sleeve for additional hydration opportunity, Stow-on-the-Go trekking pole attachment, integrated raincover, the Atmos AG 65 is an industry leading contender for backpacking packs. Made with 100% recycled materials. Osprey - Atmos AG 65l Trekking Backpack venturi blue