The wheelchair cushion that combines superb skin protection and shape matching ability. The Zone Air design allows forimproved position and function while maintaining optimal immersion and envelopment of both the ishial tuberosities and greater trochanters. The Zone Air shape fitting cushion provides critical pressure redistribution around the pelvis area providing the superior skin protection that the Natural Form brand is known for. Simply adjust the cushion's shape inorder to minimize tissue deformation and maximize blood flow. With a fluid proof, vapor permeable SoFleece III cover that can be removed and laundered, the Zone Air cushion provides an optimal seat surface for the patient and caregiver alike.