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. for this reason the rear of the saddle is wider to better distribute the load. 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.