Astute skylite vt saddleif it can be made out of carbon fiber astute has done it for their top of the line saddle this has been done to bring weight down to an absolute minimum and make this saddle as race ready as possible the skycarb sr features a full carbon shell perched atop carbon rails if you are looking for one mean performance oriented saddle the skycarb brings it featuresin this saddle we chose the microfiber future italian product ultra strong waterproof breathable washable