it's one of the lightest filters on the market

padded shoulder harness and a sternum strap

but just right

70D polyurethane coated polyester ripstop (Rain fly)

Osprey Atmos AG™ 50 Backpack w/raincover Size:Small/Medium it's one of the lightestFor weekends backpacking and lighter weight multiday overnight trips where comfort and ventilation are paramount, you can't find a better pack than the Atmos AG 50. AntiGravity suspension delivers a weight defying fit that seamlessly envelopes your back and hips in 3D suspended mesh, leaving you wondering where all that weight you packed went. Your water bottles fit snugly in the easy to use stretch mesh side pockets, an internal reservoir sleeve