The SLR Kit Carbonio Boost Saddle takes an innovative approach to the features of a classic like Selle Italia's SLR. It finds the ideal combination of comfort and performance -- traits that are underscored by a compact shape and unrivaled lightness -- which makes it ideal for road racing. A CarboKeramic rail increases stiffness and strength without sacrificing lightness, and a Fibra-Tek cover improves on durability and abrasion resistance.