This stiff competitive road/tri saddle is contoured to position the rider for optimal power transfer & comfort; its extra-wide BG channel maximizes blood flow. Patented BG design is lab tested to assure blood flow to sensitive arteries Stiff carbon-reinforced shell tuned for ride compliance Tuned-density PU foam padding is lightweight & supportive Lightweight & durable hollow titanium rails Tough light weight & water resistant Micromatrix cover