ISM PN 3.1 BLACKBased on the 3. 0 chassis, the 3. 1 offers more padding and a new improved comfort shape Similar to the other PN saddles, the PN 3. 1 offerings superb thigh and hamstring clearance Nose less and designed to remove pressure from soft tissue, ensuring maximum blood flow, no genital numbness, and a healthier, more enjoyable ride 40 series padding offers a softer more comfortable ride Tapered edge mold design for incredible comfort Auto racing inspired