Call it what you want, this reversible, quilted and padded miracle will keep your butt from freezing to the ZÜCA , and your buns from aching. *The Seat Cushion is compatible with both the ZÜCA Sport and the ZÜCA Pro. Technical Specs - Sport & Pro Seat Cushion Call it what you want, this reversible, quilted and padded miracle will keep your butt from freezing to the ZÜCA, and your buns from aching. • Seat Cushion is compatible with both the ZÜCA Sport and the ZÜCA Pro • Fabric fastener wrap to secure to your ZÜCA Sport and ZÜCA Pro • Material: 100% Polyester