VENTILATION AND COMFORT IN 3D. Atmos AG is a backpacking backpack featuring Osprey's innovative AG AntiGravity™ back system. Atmos AG is comfortable in warm weather thanks to its ventilated hipbelt, and versatile enough for year-round use.
Hike First Class. Hike First Class with the Manta hiking backpacks. These highly ventilated packs are equipped with a trampoline sprung Airspeed™ backsystem and an integrated raincover. Manta is the full hiking package.