The Java’s patented biomechanical design provides the flexibility to easily and independently optimize pelvic support and balance the trunk, supporting the normal rhythm and movement of the body. The back is available in widths of 14-20". The three back heights are Regular (below scapulae), Tall (mid scapulae) and Grande (top of shoulder; all heights are available in 3" or 6" depth. Height, depth, angle, pelvic support and trunk balance can be independently adjusted. Simple, compact quick-release hardware offers 20° of back angle adjustability, 2" of seat depth availability and 2" of back width adjustability.