These covers fit most standard-sized fixed-back racing seats. They are not a good choice for fixed-back seats or for the Corbeau RXP and RXP High Back or Corbeau Baja Ultra or Ultra Wide seat. Other seat shields are a better choice for those. You have made a significant investment in your racing seats. Don't let them sit unprotected from the elements. These amazing Seat Shields will protect the vulnerable front and sides from dust, sunlight, and sharp objects, to name a few. Super convenient to install. Simply slip over the top. The front stretches to fit with the sewn-in elastic and two straps secure the entire shield in place in back. These are not traditional seat covers that are simply intended to cover old seats. These fit loosely on a broad range of seats to provide protection.