Designed to position the rider for optimal power transfer & comfort; its Body Geometry channel maximises blood flow. Patented Body Geometry design is lab tested to assure blood flow to sensitive arteries Stiff carbon-reinforced shell for longevity & all-day riding efficiency Lightweight & supportive PU foam for increased comfort over longer rides Lightweight & durable hollow titanium rails Tough light weight & water resistant Micromatrix™ cover Sizes available 130mm 143mm 155mm & 168mm