Ergonomically streamlined for adventure races and ultralight backpacking. 2300-cu.-in. capacity.

Go fast and far in amazing comfort with Osprey's Atmos 35 backpack. Excellent for day hikes overnight minimalist trips and weekend adventure racing the Atmos 35 streamlines efficiency with full-length panel-loading access and plenty of accessible features. Anything that touches your back is covered with a breathable mesh or a special perforated waffle foam that won't heat you up like conventional backpanel fabrics. The backpanel on the Atmos 35 is stretched taut so the load sinks evenly into the lumbar support area instead of riding on your hips resulting in uniform pressure that neutralizes hot spots. Two quick release straps on the other side of the backpanel attach to your hydration pouch for fast refill access and versatile hydration tube routing. If you've always wanted a supportive Osprey day pack but you worried about extra ounces the Atmos 35 could be the last light pack you'll ever need.