Replacement internal seat foams to suit all 101 Series Spiders. New, higher quality production - now has a neoprene content so it is stronger and a little firmer. Consists of the base and back cushion for one seat. PLEASE NOTE THESE ARE DESIGNED TO BE CUT INTO INDIVIDUAL PIECES AND TRIMMED TO SUIT YOUR SEAT. ONCE CUT TO SIZE THEY FIT EXTREMELY WELL WITH CORRECT OUTER CONTOURS TO MATCH THE SEAT COVERS. New seat covers are available under item code 101-404.