PROLOGO NAGO EVO PAS CPC TIROX 134 BLACKSemi round profile saddle intended for road use Carbon fiber injection base CPC material on top of the saddle provides higher grip and vibration absorption Tirox models feature an aerospace light Ti Alloy rail that provides a balance of weight and strength PAS models feature a channel in the seat to alleviate pressure and numbness in the pelvic region by promoting healthy perineal blood flow