Off The Grid. With a proven legacy, the Kestrel is a rugged, high performance backpack for long trips. Whether trekking through mountainous terrain, deep forests or winding trails, you will be carrying the definitive benchmark in backpacking.
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.