The new Mark Todd ACUPRESSURE ones. They are fantastic, They do not soak up sweat can whipe clean and are soft on the horses back if you should land heavy maybe if you judge a stride all wrong or whatever.
Highly recommended.
Nuu-med? My WOW jumping flaps are very forward cut & the unlined nuumed close contact is perfect. There is also another jumping one if your saddle isn't quite as fwd cut.