After your first multi-day with the ventilated support and all-day comfort of the Osprey men's Atmos 65 AG Backpack, you'll swear Osprey has mastered anti-gravity. A continuous panel of lightweight mesh seamlessly follows your body's contours for supportive load transfer and unrestricted movement. The Atmos AG adjusts easily to match your torso length and the Anti-Gravity mesh wrap hipbelt also offers the Fit-On-The-Fly adjustment system for optimal fit, stability, and comfort. This top loader packs easily and the floating lid adjusts to make room for extra gear. Two front panel pockets stash extra layers and trail necessities while multiple gear loops stow your trekking poles and ice axe.