Deuter's Futura Pro 36 Pack features the AIRCOMFORT Futura Pro System that brings together three elements: top Air comfort ventilation, superb load transfer and VARIFLEX pivoting hip belt system. AIRCOMFORT Futura Pro system with 3D Wide AirMesh cover AIRCOMFORT Pro construction withSpring steel wire design combined with a horizontal stay provides superb load transfer Variflex Pivoting of the waist belt will follow every movement and helps you keep your balance and maintain energy on difficult terrain Mesh ventilated back Systems reduce perspiration by 25% Ventilation hip pads made of bilaminate foam guarantee a great fit and carrying comfort AIRCOMFORT Futura Pro Back System VARIFLEX Hip Belt System Bottom Compartment Access with Internal Zip Divider Integrated, Detachable Rain Cover Hydration Compatible Compression Straps Stabilizer Straps Side Bellow Pockets Side Mesh Pockets Front Stash Pocket Top Lid Pocket Number of Pockets: 6 Torso Length: 17 20 Material: Macrolite 210Super Polytex Size: 27x13x9 Weight: 3lbs. 11oz. 3 oz rain cover Capacity: 2197 cu. in.