Osprey Atmos 35 Pack, Graphite Gray, Small Airspeed Suspension with LightWire Alloy Frame Gender Specific BioStretch Fixed harness with mesh covered perforated foam and slide adjustable sternum strap Gender specific BioStretch built-in hipbelt with mesh covered perforated foam and ErgoPull closure Hydration compatible backpanel sleeve with hanger and dual side hose exits Panel loader access