All the seating angles and contours of Mustang's one-piece seat for the F3 models have been sculpted for perfect riding. The detailed stitching enhances the Spyder's striking design. Our marine-grade baseplate and proprietary foam are carefully contoured to support both rider and passenger in the optimal cruising angle for all-day riding. The seat is equipped with a driver backrest receiver for using backrest #79055 (sold separately).