Honeycomb Roadsofa™ SeatEach seat combines a Gel-Core™ interior and Pro-Foam™ to create a foam with a balance of compression and resilience geared toward long distance comfort Pro-Foam™ unique molding process creates an element-resistant, self-skinning foam that is sealed from water and enhances the seat's durability as well as comfort Honeycomb (HC) pattern incorporates modern geometry in a stylish seat cover SaddleGel™ in front and rear reduces tailbone pressure and increases circulation and comfort for both driver and passenger Designed and made in the USA 5-1/2" (13.97 cm) lumbar support.