Comfort - Our car driver's seat cushion helps maintain a correct driving posture and relieves pain from prolonged sitting. [Performance] Adjustable cushion secures to the car seat. Anti-slip features provide additional stability while driving. Made of: Our car seats are made of memory foam, providing comfort and support. They're for long-term driving and extended sitting. [Note] Please carefully check the model before purchasing to avoid any inconvenience caused by buying the wrong one. [Service] We have a wide selection of auto parts. Please feel free to contact us if you have any questions.