A seating system, for example a paediatric seating system for wheelchairs, provides appropriate support for a person using the chair by providing adjustable components to support specific anatomical areas of the back, pelvis and upper leg and, more specifically, three components that stabilize the pelvis of that person. These components comprise an elevation change in the seat, a pad at the back that provides resistance to the posterior superior iliac spine (PSIS) and a pair of anterior pelvic pads that stabilize below the anterior superior iliac spine (ASIS).