ISM's Performance Long saddles feature 270mm of length for more fore-aft rider movement and a 135mm wide base for support when climbing. The PL 1.1 has the maximum available padding in this category. Prior to 2016, the PL 1.1 was sold as the Prologue model.

• Nose-less design removes pressure from soft tissue, ensuring maximum blood flow, no genital numbness, and a healthier, more enjoyable ride
• 40-series foam-and-gel padding
• Long shape for fore-aft movement
• Same chassis as the PL 1.0