One glance at the Selle SMP Stratos will tell you that this saddle is a bit different. That odd shape is 100% dedicated to relieving the pressure that most road bike saddles place on your genitals and pudendal nerve areas, causing numbness and discomfort. The Selle SMP Stratos' pronounced central channel eliminates numbness to reduce fatigue. the unique beak shape provides a flat base while sitting, but reduces pressure on the genital area. The rear of the saddle is raised to provide an optimized position during hard pedaling. The Stratos is made with a nylon/carbon composite shell for efficient power transfer and an engineered flex for comfort. The stainless steel rails also provide mild shock and vibration absorption. The saddle's foam elastomer padding is wrapped in supple leather or Lorica, depending on which version you choose.