1966-1969 Chevy Impala SS Bucket Seat Cushion Foam Buns(does one seat)Finally, something you can sink your buns into! After so much use, your Impala SS' seat foam deteriorates and flattens, making it uncomfortable to sit on and erasing the clean cut, stylish lines of your seat covers. Now with our 1966 1967 1968 1969 Chevrolet Impala SS bucket seat cushion foam, you can get bring those saggy old seats of yours back to their original pristine condition and Chevrolet comfort.