The Osprey Aura AG 50 Women's Backpack has a special AntiGravity™ 3D back system that easily adjusts to your back. This 3D back system allows unrestricted movement with the pack. Combined with the ability to customize the back system and full features, it sets a new standard in the ventilated backpack market. ExoForm™/ BioStretch™ padded hip and shoulder straps shaped for women. Top drawcord entry, bottom zipper entry. Height-adjustable and removable lid with zippered pocket; easy FlapJacket™ closure when main lid is removed. 2 zippered pockets on waist belt, 2 axe loops. Stow-on-the-Go system for clipping poles on the go. Integrated removable rain cover. Separable sleeping bag compartment inside. Fit-on-the-Fly™ adjustable waist belt. Internal hydration pack pocket. Internal compression strap under lid. Removable lower compression straps that can also be used for a car mattress. 2 stretch side pockets and 1 front pocket.