EASY to prescribe, EASY to order, EASY to use. Easy Back SH PDC - shoulders height 53 cm / Deep contour 15 cm. Innovative. Cover Technology Jay EaSy Back comes with a microclimatic cover and a soft foam underneath for maximum comfort and user protection. 3DX™ spacer fabric vents both heat and moisture and increases air flow. Cover is machine washable at 60° C and quick to dry.