The fabric tri flat pro saddle the tri saddle is compact feature rich and designed specifically for triathletes and time trialists with integrated bottle mount and a central pressure relief channel that also acts as a drain for swim water when it comes to riding styles aero means flat the flat profile is for riders who get low to cheat the wind flat out in every sense less weight on the saddle allows us to use a little less padding to create a flatter top surface and to offer a t