Your riding position changes frequently during every ride, so take advantage of a seat that accommodates it all with Fizik's Antares R5 Kium saddle. The carbon reinforced Nylon Wing Flex shell gives just enough to keep you comfortable while staying stiff enough for all-day support. Kium rails add toughness and corrosion resistance with little weight penalty, so you know you'll get miles and miles of use out of the Antares. The saddle covering combines two different types of Microtex strategically placed for durability as well as uninhibited thigh movement for all-day comfort. And, at only 205 grams, the Antares is light enough for your race day rig. Start pushing limits on the race course or the group ride.