Existing modelThe Futura Pro 42 utilizes Deuter’s Futura PRO Aircomfort back system with increased padding in the hip belt and lumbar region and VariFlex hip belt. The VariFlex hip belt allows a pivoting motion in the hip belt to better move with the body. This patent-pending system, combining the ventilated back and pivoting hip belt is the first of its kind and offers superior ventilation for hiking enthusiasts.