This stiff saddle features a FACT carbon fibre shell tuned for racing is contoured to position the rider for optimal power transfer & comfort; its extra-wide Body Geometry channel maximises blood flow. The Romin is the saddle of choice for World Time Trail Champion Tony Martin & Sylvan Chavanel Patented Body Geometry design is lab tested to assure blood flow to sensitive arteries Stiff FACT carbon fibre shell tuned for support & ride compliance Super-light PU padding for comfort & support on longer rides Ultra-light & strong oversized FACT carbon rails Tough light & water resistant Micromatrix cover Sizes available 143mm 155mm & 168mm NOTE: Oversized 7x 9mm carbon rails are not compatible with seatposts equipped with side-load clamp mechanisms for 7mm round rails