ISM PN 1.0 Saddle - 275mm x 110mmISMs Performance Narrow saddles feature a 110mm width to allow for more rider body movement around the saddle. The PN 1. 0 has a firmer padding, for competitive cyclists and road racers. Prior to 2016, the PN 1. 0 was sold as the Attack model. Nose less design removes pressure from soft tissue, ensuring maximum blood flow, no genital numbness, and a healthier, more enjoyable ride 25 series foam and gel padding Maximum thigh and hamstring clearance