The Nago Evo is a unisex semi round saddle ideal for medium to long distance road and offroad riding The Nago Evo is a unisex semi round saddle ideal for medium to long distance road and offroad riding It offers great versatility for riders who like a choice of riding position and suits both weekend rides and racing PAS models feature a channel in the seat to alleviate pressure and numbness in the pelvic region by promoting healthy perineal blood flow T2.0 models feature Chromium HRC39, a lightweight aerospace grade material that makes for the strongest of all Prologo rails