Osprey Atmos Ag 65 SM/MED keen and it's ideal for use

and it's ideal for use with hats and helmets

One size fits most Adults

BFit deluxe insole adds comfort on the trail

a softer more cushioned midsole

including an impressive 400 lumen Turbo Mode

Osprey Atmos Ag 65 SM/MED keen and it's ideal for useFor heavyweight weekends or weeklong backpacking trips where comfort and ventilation are paramount, people know to reach for the Atmos AG 65. You'll forget how much you really packed with its AntiGravity suspension, delivering an incredible fit that seamlessly envelopes your back and hips in 3D suspended mesh. From easy to use stretch mesh side pockets for water bottles, an internal reservoir sleeve for additional hydration opportunity, Stow on the Go