ISM has been working with the World’s best professional cyclists for several years. The Attack is our newest road racing saddle. We have narrowed the transition from front to back to 110mm to allow for better rider body movement. The central channel has also been lengthened to maximize and maintain blood flow and comfort in a more slack position. In fact, blood flow testing proved the best we’ve ever had. Comfort, Power, and Performance. The Attack gets you there. Uses foam and gel padding and titanium alloy rails. 270mm long and 110 mm wide.