A family of seating featuring the Lumb-Air back support system. This unique push button system allows you to adjust the lumbar support so that it is perfect for you in addition to all the other quality features that you have come to expect from Trexus. With 70% of the workforce suffering from back problems at some point in their working lives, it is important to have an office chair that meets more than your basic needs. The Posture range fulfils those requirements with features that include back shaping to match the spine and fully adjustable back angle.