The Atmos 50 provides the ideal volume for your next superlight backpacking experience. At 3000 cubic inches and with an average weight of 3.5 lbs / 1.5 kg, you can carry your superlight essentials with ease and comfort. A traditional floating top pocket/top load design and twin front pockets with welded water resistant zips makes loading easy. Other features include an internal hydration sleeve, zippered mesh pockets on the hipbelt and removable sleeping pad straps.