Able to hold up to 50L, the Men's Atmos 50 from Osprey encourages long journeys into the mountains. With the world's first fully ventilated hipbelt and suspended AntiGravity, the bag will keep you cool and comfortable. As well, it will protect your gear come rain or shine with a supplied raincover.Adjustable torso lengthFlapJacket top cover for use without lidInternal key attachment clipTwin zippered hipbelt pocketsTwin ice axe loopsTop lid accessStretch mesh side pocketsStow-on-the-Go trekking pole attachmentSternum strap with emergency whistleRemovable sleeping pad strapsBase zip entryTwin compression webbing strapsLight weight peripheral frameRemovable top lid with dual compartmentsExoForm/BioStretch harness with load lifter 'bar'Compatible with Hydraulics and Hydraulics LT ReservoirAntiGravity 3D suspended mesh backsystemFit-on-the-Fly adjustable hipbeltIntegrated & detachable raincoverInternal hydration sleeveSleeping bag base compartment with internal dividerStretch front pocketStretch mesh side pocketsWeight: 2.0 kgDimensions: L83 x W38 x D39cmFabric: 100D x 630D Nylon Dobby