Saddle fittings shims are available in two thicknesses, ThinLine Plus (1/4 inch) and Ultra ThinLine (thinner, 3/16")
Front, Bridging, and Rear shims allow you to adjust your saddle fit while horses are growing or if you are trying to develop a better topline.
A full booster shim is also available to create ThinLine Plus thickness in your Cotton Trifecta pad. The Ultra ThinLine Cotton Pad may be used, without shims, with a custom fit saddle. The addition of the Ultra ThinLine pad will not alter your custom saddle fit. It will only provide you with the comfort and impact protection you need. The booster shim will add nearly 1/4 inch to your Cotton Trifecta pad and is recommended for very young horses or horses in high impact sports.
Shims are sold separately.