ISM PN 1.0 Saddle - Steel BlackISM PN 1. 0 Saddle Steel Black. ISMs 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