Built for speed. The TTS features a carbon-reinforced shell tuned for time trails featuring additional padding in the nose for max comfort in an aero position. UCI approved. It is the saddle of choice for World Time Trial Champion Tony Martin. Stiff carbon reinforced shell tuned for TT & triathlon racing Super-light EVA padding for comfort & support on longer rides Durable & lightweight solid titanium rails Tough light & water resistant Micromatrix™ cover Size 130mm