Traditionally, hyper lightweight saddles have been synonymous with numbness and discomfort after just a few miles of riding. Cyclists were happy to make the sacrifice, however, because that pain equated to speed. Thankfully, those days are over. The Selle Italia SLR Super Flow saddle can be easily recognized by the massive anatomic cutout across the top that relieves the rider's soft tissue areas. The Super Flow starts with a nylon composite base. This bas is reinforced with 30% carbon fiber to achieve the exact stiffness that Selle Italia was looking for. The saddle is stiff enough for efficient pedaling, but it also gives enough to comfortably conform to your body's movements. The titanium rails also allow a bit of flex to dampen road shock and absorb vibration. Finally, the Super Flow offers two different widths 130mm and 145mm to compensate for each rider's body type.