The Sparco off road low base cushion is made with memory foam for extra comfort and finished with a waterproof material. Suitable for use with a range of Sparco racing seats. Ideal for off road use or open top cars Memory foam provides additional comfort and reduces fatigue Waterproof material cover Suitable for use with the following seats: Sparco QRT-R, Evo, Evo L, Evo XL, Circuit, Circuit II FIA compliant.