The pr 10 is a new seat in the line set to reset your expectations of comfort pr stands for performance recreation as this seat is as comfortable on a hybrid bike as it is a full blown race machine this seat is a cousin to the typhoon saddle and features a narrower rear width revised cutout and upgraded synthetic leather cover with the thickest padding of all ism performance saddles everyone will find comfort with the pr 10like all ism saddles the pr 10 is nose less and designed