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Add Saddle Fitting Shims to the Pad in My Cart

5.00 out of 5 based on 1 customer rating
(1 customer review)


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Saddle fitting shims: ThinLine material protects, provides comfort, stability, and  helps you create the perfect fit.


We are so happy you are purchasing a ThinLine Pad- Please use COUPON CODE PerfectFit for 15% off shims for your new pad.  The coupon code only works if you have a saddle pad in your cart because if you use this  and have not purchased a pad at the same time, our not so psychic order fillers have trouble figuring out which pad you own.

When you see ThinLine sewn onto any saddle pad, there is a pocket for you to add insert, also called shims.

Saddle fitting Inserts are made in two thicknesses of the amazing shock absorbing protection: ThinLinePlus+ 1/4″, Ultra ThinLine (thinner) 3/16″

The full ThinLinePlus+ Booster shim is 5mm. This shim allows you to double your protection without altering saddle fit.

Saddle fitting shims/inserts have been carefully designed by Master Saddlers. They are custom cut with a tapered edge to ensure you will never have a pressure point. Our exclusive foam makes saddles fit better and horses more comfortable.  Inserts stay put without shifting and you may stack up to three sets. We do not divide the pocket, allowing you or your saddle fitter to place the inserts precisely where your horse needs it.

If you find you no longer need inserts, just remove them and keep all the great benefits of your ThinLine Pad!

Adjust saddle fit and add more protection for your horse all in one easy step.

custom saddle fit shims inserts

Image: Booster Shim Inserted into Pad

Front, Bridging or rear English Shims
Front, Bridging or Rear Western Shims



Shims are sold in pairs.  Options are: Front, Bridging, Rear.  Or you may purchase a Full Booster Shim for any pad.  We also have kits for your convenience.  The english kit comes with one pair of front ThinLine Plus (1/4 inch) and two pairs of rear ThinLine (3/16 inch) shims. The western kit comes with one pair of front ThinLine Plus (1/4inch) shims and 2 pairs of bridging shims (1 ThinLine Plus and 1 ThinLine 3/16 inch).

Colors: Please note, ThinLinePlus+ shims are available in black only. ThinLine horse shims may arrive in black, brown or white. Shims cannot be seen inside your pad. If you have a set of horse shims with texture on top it is ThinLine 3/16″ , if it is slick on top it is ThinLine Plus 1/4 inch- the thickest.

To Order more than Saddle Fitting Shims for pads not in your cart please Click Here:

English Shims

Western Shims  


1 review for Add Saddle Fitting Shims to the Pad in My Cart

    5 out of 5


    very easy and get the correct shims for the right pad.

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Questions and answers of the customers

  1. A Thanks for your question! Adding front shims, in the ThinLine Plus thickness (1/4"), will provide the most lift and protection under that area of your saddle. We also recommend working with a saddle fitter to determine the best fit for your particular horse.