Not every child fits neatly inside a standard cushion width. This extended back cushion gives extra width across the back, which suits clients whose trunk is broader than the shell it sits in, and clients using a widened backrest who need the padding to reach the full width of the support.
Getting the cushion width right matters clinically: a cushion that stops short leaves an edge under the trunk and encourages the client to settle to one side. Full contact across the back spreads load and helps the client stay square.
The cover is removable for washing, so it holds up to daily school and home use.
