The entire touring saddle range is based on the 3 zone comfort principle. The material offers extremely sensitive damping properties, and can compromise by 75%. All saddles in the phorm touring series are developed with an upright riding position in mind. High quality, soft to the touch and durable all-weather durasilk synthetic cover. sit bone width: 110-150 mm / 4' 33'' - 5' 91''. rails: annodized fec light steel. cover: weathermax durasilk, wind and splash guard under relief channel.