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.
Designed for Adventure. With a simple, progressive design, the Rook is built for backpacking comfort and fit. Combining a high level of adjustability, an integrated raincover and an innovative, ventilated backsystem, these packs will rise to every challenge.