The supremely ventilated, featured and durable Sirrus® Series now features adjustable torso lengths, improved women's specific fit and comfort with updated aesthetics, the Sirrus® 36 is the go-to choice for everything from short day hikes to lightweight overnights in the backcountry no matter how far, or near.Read more
Incredibly comfortable and ventilated tensioned mesh backpanel with added adjustability for variations in torso length to provide fine-tuned customization fit for every hiker and backpacker.
Seamless Hipbelt Interface
Users can't feel seams that don't exist, and because there aren't any on the Stratos/Sirrus updated hipbelt, hikers can focus on the journey instead of the pack on your back.
Hope for bluebird weather but know you're covered with Osprey's integrated and removable raincover that stows in its own pocket when the sun returns.
Spacer Mesh Sewn-In Hipbelt
Zippered stretch mesh hipbelt pockets, ErgoPull hipbelt closure with hipbelts directly connected to backpanel mesh, Seemless lumbar to hipbelt body wrap.
AirSpeed Suspension Backpanel
LightWire alloy frame creates low profile air space optimizing pack balance and ventilation. 3D-tensioned breathable mesh backpanel ensures supportive fit.
Spacer Mesh Harness