The GSeat Orthopedic Gel Chair Comfort Cushion, Thermo Sensitive Memory Foam Seat Cushion from Sinomax, and the CONFORMAX Anywhere, Anytime Gel Car/Truck Seat Cushion are highly rated car seat cushions, according to reviews in 2015 from Amazon.com customers. CONFORMAX's seat cushion scored highest with reviewers.
The GSeat was reported as providing relief to spine issues and lower back pain. Reviewers stated it is excellent at providing comfort during prolonged sitting periods, and is made of high-quality material. The Thermo Sensitive Memory cushion is praised by reviewers as being extremely comfortable and alleviating the problems of prolonged sitting during cross country drives. Unlike the GSeat, which is only a seat cushion, the Thermo Sensitive cushion provides both seat and back support, which customers claim helps with both upper and lower back pain.
The Conformax seat cushion is considered excellent by reviewers at cushioning car seats and other types of chairs that lack support. Users reported that the dense material of the cushion holds its shape and doesn't flatten after prolonged periods of use.