Selle italia slr boost endurance superflow saddlethis road bike saddle features a smooth fibra tek cover construction, which enables it to handle the increased pressure from long days out on the road. Selle italia has also equipped this model with alloy rails, which provide you with a secure hold to your seatpost of the harshest of riding conditions. Coming complete with gel inner padding, this versatile saddle also keeps you comfortable and stable as you clock up the miles.the short saddle for long distances slr boost endurance superflowin response to the ever increasing demand for short saddles designed for long distance riders, selle italia proposes slr boost endurance superflow. Here, the focus is of course on comfort, decidedly increased by the light gel plus padding, differentiating it from the slr boost and allowing cyclists to enjoy improved comfort and perfect positioning on the saddle, even during long distance pedalling. A saddle designed and conceived for those who make long journeys their life philosophy. Features cover material fibra tek rail material ti 316 tube padding gel use road, endurance, touring dimensions small 130x248mm large 145x248mm rail dimensions 7mm category performance weight small 204g large 209gbuy selle italia components from chain reaction cycles, the world's largest online bike store.