Prolite Thin Adjustable Tri Pad Black. Adjust your horses saddle accordingly and ride in comfort with the Prolite Thin Adjustable Tri Pad. Offering a new slimmer version, the Tri Pad reduces the amount of bulk under the saddle and is a firm customer favourite for helping your saddle sit correctly. The Tri Pad comes with one set of shims allowing you to adjust the balance of your horses back whether you\\\'re helping to fit a saddle to horses that may have asymmetric conformation, needs a remedial fit or for those with poor back and wither conformation. The Tri Pad also features a perforated outer to allow air to circulate to allow for maximum comfort.