AG AntiGravity™ is Osprey’s multi-award winning backsystem which combines three-dimensional suspension with a tensioned lumbar support. AG AntiGravity™ provides exceptional weight distribution, allowing the wearer to move as if they aren’t wearing a pack.
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.