With an anatomic cut-out shape and advanced technology, materials and craft, Arione R1 Open is a leading performance road saddle for riders who want a flat saddle profile and a cut-out to avoid pressure and numbness. Made for Snake riders with high body flexibility and no pelvic rotation while pedaling, the Arione is longer than any other fi'zi k road saddle, flat from nose to tail and with a narrow nose, so you can move around to find your power spot. The Large model is the wider of our two options. Arione R1 Open features a composite Carbon-reinforced nylon shell and a light, strong, Braided Carbon rail. A Comfort avoids pressure on the rider's sensitive soft tissue and ensures that all weight is correctly supported across the whole surface of the saddle. Like all performance fi'zi k road saddles, Arione R1 Open is light, flexible and agile. It's designed for pros, with pros and raced by pros.With an anatomic cut-out shape and advanced technology, materials and craft, Arione R1 Open is a leading performance road saddle for riders who want a flat saddle profile and a cut-out to avoid pressure and numbness. Open central cutaway Shell Carbon-reinforced nylon Rail 7x9mm Carbon Braided Cover Microtex Weight 205g. Integrated Clip System compatible