Which type of breastplate??

[Lynz25]

A friend has been riding my horse and she took him to a competition on Sunday. As he jumps so big at the moment she felt like the saddle slightly shifted backwards as he went up.

Any recomendations to a breastplate?

 

[Ella19]

I have an amigo breast girth, really pleased with it. Wanted the elasticated one for jumping in order to have some give