The Selle Italia SLR Boost Saddle is one of the lightest saddles on the market for road performance. A carbon composite and nylon polymer shell pair with a Fibra-Tek microfiber cover for great comfort and low weight. It also includes carbon fiber rails which are more adjustable in addition to their very low weight and great stiffness. The neutral shape of the saddle makes it a great choice for riders who stay still in the saddle and those who rotate as they ride. This keeps sensitive bones comfortable so you can pedal harder. Comfort to sit bones is enhanced with the help of the renowned Superflow cutout which also helps it drop more weight. The Selle Italia SLR Boost is all about road performance.