1990 to 1998 Mazda Miata Seat Covers 12 Color Option (Black-Miata in White) Our Miata seat covers are made out of 85% cotton and 15% polyester Seat covers are machine washable. Cold Cycle only. Drip Dry A quarter inch of foam is added to the inner layer of the seat covers for extra comfort Our Miata seat covers fit over your original seats like a glove. Instucitons are sent to help you install your seat covers