My husband just ordered a One-Pad (Won-Pad?) from D Bar M in Reno. From
everyone he's been talking to, these pads are supposed to be terrific.
Apparently they are neoprene and something so that you can just hose them
off after riding and they are supposed to have some sort of venting system
that keeps the horse's back from heat build up. Also, they are supposed to
be really good at staying in place so you don't have to cinch them up as
tightly, too.