Solar-reflective leather in the seating area and automotive-grade vinyl on the sides; patented process reduces surface temperature by as much as 14°C (25°F) for a cooler seat, higher durability and longer life over conventional leather or vinylLow-profile design with molded flexible urethane foam interior for improved seating position and maximum comfort5 mm (3/16") ABS thermoformed seat base for a perfect fit, and fully carpeted bottom with rubber bumpers to protect paintFeature backrest capability for both driver and passengerSeats' internal EZ Glide systems feature virtually no metal-to-metal contact with the backrest detent bars; bars are securely suspended in place using synthetic composites that virtually eliminate corrosion and wearSeats' detent tab is a rust-free advanced polymer and is what allows for the smooth operation of the EZ Glide systems; passenger backrest position on seats features a locking screw for additional security over detent tabOptional backrests feature solar-reflective leather cover and multiple detents with virtually no metal-to-metal contact for vertical and fore/aft pad adjustmentEZ Glide II™ backrest measures 23 cm W x 13.5 cm H (9" x 51/4") and does not include a pouch; EZ Glide III™ backrest measures 25.5 cm W x 19 cm H (10" x 71/2") and includes a pouch on the backside of the pad"The Convertible" EZ Glide II large backrest includes a rain cover that pulls out of a pouch on the backside of the pad and covers the entire seatAll backrests can be used in either positionMade in the U.S.A.