Designed to meet the growing demand for comfortable and ergonomic saddles- Central Superflow hole allows pressure to be relieved from the perineal area- Fibra-tek is Selle Italia's latest cover material offering supreme durability- Ti 316 7mm rails are hollow titanium, a balance of strength and light weight- L3: "Wide" intertrochanteric distance and high pelvic rotation (Flow and SuperFlow saddles)