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Saddle Fitting Shims for English Sheepskin Half Pads-7023/7415


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ThinLine material protects horses and creates a perfect saddle fit.

Master Saddlers and ThinLine developed a shimming system designed to create custom saddle fit while also providing shock absorbing therapeutic benefits. ThinLine saddle fitting shims are made from the same trademark foam found on ThinLine pads. In addition, these English sheepskin saddle pad shims are easily inserted or removed and stay in place during riding and washing.

Saddle fitting shims are available for all riding styles.

~These sheepskin half pad shims will fit the pads listed below.

7415-Cotton Trifecta with sheepskin rolls half pads

7023-Full Sheepskin Trifecta half pads


Easy installation.

Open pocket allows for perfect placement.

Shims will not shift or move.


Once inserted, shims are invisible.
custom saddle fit shims inserts
Use one or layer for a seamless feel.

ThinLine sheepskin half pads have an open pocket. As a result, you place shims exactly where you need them. The pocket has room for up to three 1/4″ shims in the same location. When stacking multiple shims, place one just behind the other to create a seamless transition.

Saddle fitting half pad shim options.  Shims are sold in pairs.

Booster Shims

Front Shims provide lift in the wither area and can be used to fill in behind shoulders.

Bridging Shims are used to support hollow or sway backs. ThinLine foam encourages horses to lift their back thus developing better muscle tone over their toplines.

Rear Shims are designed to lift the cantle of the saddle chiefly to create balance.

Saddle Fitter Kits featuring 1 set of front 1/4″ shims and 2 sets of 3/16″ rear shims.

The full Booster Shim fills the entire ThinLine panel. Booster shims allow you to create ThinLine+ (1/4″) thickness for extreme protection.

Saddle Fit and Asymmetry (Crookedness).

Saddle trees are symmetrical, frequently horses are not. Shimming is generally the best solution for asymmetrical horses. ThinLine shimmable pads provide therapeutic protection. When working with asymmetry, leave the full side un-shimmed. On the hollow side, turn one shim upside down and insert the pair (both shims) into one pocket. As a rule, once horses begin working in ThinLine they feel comfortable enough to stretch into the hollow places and will become straighter. Keep an eye on your saddle fit and slowly remove one shim at a time.

Saddle Fit and the hollow or sway back.

Western riders purchase bridging shims more frequently than English riders. Western saddles have a longer, straighter tree. Bridging shims are a simple way to create the missing contact. Swayback or not, you may find bridging shims to be the easy solution.

Horses will often develop better topline in ThinLine.

Horses grow and change throughout their lifetime. For this reason, we made our English sheepskin saddle pad shims easy to remove. Keep riding the great benefits of your ThinLine Pad.

Incidentally, ThinLine Plus+ shims (1/4″) are available in black only. ThinLine (3/16″) shims may arrive in black, brown or white. If you have a set of horse shims with texture on top it is ThinLine 3/16″, if there is no texture, it is a ThinLine+ (1/4″- the thickest) saddle fitting shim.

Finally, thank you for trusting us with your saddle fit needs.



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