Ergon SR Tri Men's Saddle. Features: Ergonomically designed for the foward leaning riding posture of triathlon with special attention to male anatomy Reduces back fatigue and improves pedalling ergonomics Padded for maximum performance over long distances Tri Front model was developed for riders who tilt their pelvis forward significantly and place more weight on the front of the saddle Tri Mid model was developed for riders who tilt their pelvis forward less and place more weight on the mid section of the saddle Saddle nose width = 53mm Front model and 48mm Mid model Recommended sizing for sit bone width: S/M 9-12cm, M/L 12-16cm Specs: Model:SR Tri Mid Rails:TiNox Top:microfiber Color:black Lx W Mm:232x130 Weight:205g