When I was hour building in the US, I flew over to the Robinson factory for their tour, and also bought one of the cushions designed to fit the R22. It cost me $120!!! But if you're going to do long flights, it's worth every cent. It doesn't slip, it's the right size, and it fits to the seat. I consider it my most important piece of flight equipment - laugh if you like; I don't care. And I'm sure they can do them mail order if you ask