Here is a great, affordable option to add some correction/shims to your saddle pad without having to buy an all new pad! From Classic Equine, this is a 'cut to fit' roll of closed cell foam. Includes various lengths and widths. New, in packaging but has had about 4" cut from the roll. Close cell foam has a tendency to 'shed' material when rolled, and this one is shedding just a bit but does not impact use or quality of the shims. Offers way less than retail!  Designed to go into shim pockets and can be used with a variety of saddle pad brands.