Order within and have it by * in (edit)
Ship speed applies to in stock items, pending location. Does not include personalized items like engraving, embroidery, SmartPaks, or PortionPaks. Complete details on our Shipping Policies page.
SmartPaks help you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements in SmartPaks, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free ground shipping on what you want, when you want it
  • 10% off all Smartpak brand tack, apparel, and gear
  • A free Team SmartPak calendar, exclusive email offers and discounts, and more!
Learn more about SmartPerks
*At least one horse's individual SmartPaks must be over $40. Some exclusions apply.
Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.
As a SmartPaks Subscriber, you can get free ground shipping all day, every day on just about everything we sell at SmartPak, thanks to your SmartPerks. The few add-on items we have can be shipped free by synching them with your horse's SmartPaks, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75.

Have a question?
Call 1-800-461-8898 or email CustomerCare@SmartPak.com anytime!
Product Image
 Rollover image to magnify
Additional Colors and Styles

Review Snapshot

ThinLine Shims for Trifecta and Sheepskin Comfort Half Pads

ThinLine
- Item #19453
Free Shipping Thanks To
This item may be eligible for
FREE GROUND SHIPPING

Days
Order within and
have it by
Shipping to
Est. arrival times vary, with some
as soon as
Shipping to
Order within and
have it by
Shipping to
Add these items to your cart to get
your estimated arrival date.
Shipping to

As riders and online shoppers, we know it can be tough to buy a new bridle or pair of boots without trying them on. That's why we moved the fitting room to your living room (or barn)! From breeches to blankets, if you or your horse can try it on, you can return it, free! Just use the pre-paid return label included in your order within 60 days from the purchase date. And of course, please make sure the item is in like-new condition with original packaging (we said 'fitting room', not 'war room'!).

Why We Love This

The ThinLine Shims for Trifecta and Sheepskin Comfort Half Pads are inserts designed to fit the Thinline Trifecta Cotton Half Pad  and the ThinLine Sheepskin Comfort Half Pad to provide extra comfort or to aid in minor saddle fitting issues. Assorted Colors.

Front Inserts - To fill in behind the shoulder or lift at the wither
Rear Inserts - To lift or level the back of the saddle

Favorite Features

  • Allows pads to assist in fitting multiple horses
  • Adjust anytime you need to make a change

Sizing It Up

ThinLine (1/4")
Ultra ThinLine (3/16")
Medium and Large size options correspond with size of Thinline saddle pads

Customers Also Shopped For
For over 100 years Baker Blankets have been ...
Description:
For over 100 years Baker Blankets have been known for their traditional look and durability that lasts season after season. Now the most recognized pattern in the equestrian world is available in the Lettia Sheepskin Half Pad for a winning combination! ...
Wither Relief Half Pads focus attention on the ...
Description:
Wither Relief Half Pads focus attention on the withers, an area in which many horses can experience discomfort. Addressing wither problems with an ergonomically designed cut out area, Wither Relief Half Pads help relieve wither pressure and improve saddle fit.Favorite ...
The Ogilvy Baby Pad is the perfect training pad... also ...
Description:
The Ogilvy Baby Pad is the perfect training pad... also used in the Grand Prix ring! Short, square and so stable that it doesn't even need any straps to stay in place. This little pad carries all the characteristics of the Ogilvy ...
This unique thin, washable liner is designed to sit ...
Description:
This unique thin, washable liner is designed to sit beneath your thick western saddle pad and help wick sweat from your horse's back to keep him dry, cool, and comfortable. Favorite Features Made of CoolMax® fabric- a performance fabric with an ...
Made of the highest quality felt, this pad ...
Description:
Made of the highest quality felt, this pad is designed to be lightweight yet durable enough for everyday use. Panels of the Ultra ThinLine (3/16") performance foam are sewn on either side of the 6mm blended felt pad spine, creating a ...
Melp contains regreasing properties ideal for sheepskin products, ...
Description:
Melp contains regreasing properties ideal for sheepskin products, washable leather, and wool. Melp is highly recommended for extending the life and quality of Mattes sheepskin products. Favorite Features Specially formulated for lamb and sheepskins Restores the natural properties Highly concentrated ...
The Coolback Bareback Pads are made from a ...
Description:
The Coolback Bareback Pads are made from a pile fabric with a dense concentration of resilient polyester fiber that is closely shorn to provide maximum cushion with minimal matting or slipping. Favorite Features The girth is adjustable on both sides ...
out of 5
92% of customers would recommend this product to a friend!
Tell us what you think!

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

  • Review 0
  • Votes 0
  • Discipline:
  • Expertise:
  • Product
    Experience:
  • Competitor:
Quality
Value
Palatability

Helpful?

ThinLine Shims for Trifecta and Sheepskin Comfort Half Pads is rated 4.346153846153846 out of 5 by 26.
Rated 5 out of 5 by from Great Shims! Bought these for my Ultra Thinline Trifecta half pad for a mare with no muscle behind the shoulder. I read lots of reviews about them being hard to insert into the pad. I had no issues. Took maybe 10 seconds for each side and fit was perfect. My guess is that people ordered the wrong shims for their particular pad. My mare and I have been riding happy since!
Date published: 2015-10-17
Rated 5 out of 5 by from Love ability to shim half pad! Bought shims to add to my Ultra Thinline cotton half pad. After a little persuasion, I managed to get the shims into place ( takes time, patience, and nimble fingers). But it's absolutely worth the fuss! I can feel the difference of the slight adjustment to my saddle fit, and my TB seems pleased as well! Shims feel sturdy and durable. Very happy with the purchase!
Date published: 2015-10-14
Rated 5 out of 5 by from Good quality These are the easiest shims to work with. They don't rip easily or crease. Make sure you order for the appropriate ThinLine pad as they have changed the length of the shims over the past 10 years. These are shorter than the earlier version.
Date published: 2015-07-21
Rated 5 out of 5 by from Sims for Trifecta half pad Great sims that easily fit the pad. No bunching, struggling to get them properly placed and they stay put. Theses pads take away any pressure spots and did a great job leveling my saddle.
Date published: 2014-12-25
Rated 5 out of 5 by from shimming it up! its much easier to balance a saddle when you have this item. easy to insert and 2 differenent sizes are available so you can choose exactly what you need. I would highly recommend these.
Date published: 2014-10-31
Rated 3 out of 5 by from Um...not for the all cotton trifecta. Doing what I want them to, but these are the ones that fit the sheepskin comfort halfpad and the trifecta with sheepskin rolls. They are quite a bit smaller than the ones that fit the all cotton trifecta.Totally not clear from the description, but looking at the shims on Thinlines site, quite obvious.I'd send them back, but I've thrown out the packaging, AND I need the shims!
Date published: 2014-06-02
Rated 2 out of 5 by from Ummmmm... These were so HARD to get into the thinline half pad -- like holy moly I spent a good half hour trying to get them in. I wish the rear inserts were a little thicker.
Date published: 2014-04-23
Rated 5 out of 5 by from Did the job!! I bought these shims to put in a thin line pad I use for starting young horses. The saddle balance for one of them was slightly down in front. The shims balanced the saddle just enough to accommodate the slightly different conformation of that young horse. I have one saddle that I use for starting youngsters so the shims help adjust the balance of the saddle for each one. This was recommended by my saddle fitter and it worked well.
Date published: 2014-04-21
Rated 5 out of 5 by from Fits my fleeceworks sheepskin saddle pad! Very nice fit, as my other memory foam riser pad becomes hard in cold weather.These ones fit nicely into the slots provided.
Date published: 2014-02-20
Rated 5 out of 5 by from Nice shims I bought these within past month along with Thinline half pad. They are easy to use, fit well inside the pad and add just the right amount of padding. Nice quality.
Date published: 2014-01-23
Rated 5 out of 5 by from Great! These shims are easy to use, easy to put in and take out, and make minor saddle fitting adjustments a breeze as they come in varied thicknesses. 
Date published: 2013-11-22
Rated 4 out of 5 by from Quality, not Quantity As is everything from ThinLine, these are high-quality, precision cut to fit the ThinLine pads. They require quite an effort to get them in place within the pad, but once they are in, they are not going to move. They are also quite thin, to the point of being almost inconsequential. If you need a noticable lift, you may want to seach for other alternatives or purchase two sets of these, though getting one set into the pocket is quite a task, getting two sets in may require a Herculean effort.
Date published: 2013-04-22
Rated 5 out of 5 by from I bought these inserts in size Medium to use in my Equine Comfort Products Comfort Fleece Correction Pad for additional lift in the front and they turned out to be perfect. They fit without needing to be trimmed and they are far more durable, effective and easy to insert and remove than the Equine Comfort Products brand inserts.
Date published: 2013-04-20
Rated 5 out of 5 by from Thinline is the best! Have had our Thinline half pad for over a year and love it. I bought these shims to adda little extra padding for our new thoroghbred.
Date published: 2013-03-20
Rated 5 out of 5 by from My trainer recommended the ThinLine for my second shimmable pad. I ordered the Trifecta pad without sheepskin so it's easier to wash. The new ThinLine Shims are awesome -- way better quality that the ECP shims.
Date published: 2013-01-25
Rated 4 out of 5 by from Handy These fit right into my ThinLine half pad when we need a little extra to improve saddle fit. Great product.
Date published: 2013-01-15
Rated 4 out of 5 by from Tight fit- but does the job I bought these shims to go with the Trifecta half pad. I ride in both a dressage saddle and a close contact hunter/jumper saddle. I am shopping for new saddles, but my saddle fitter suggested a half pad with shims for the dressage saddle and the same half pad without shims for the hunter/jumper saddle.Unfortunately, it's very difficult to get the shims in and out of the pad without damaging either the pad or the shims. They do seem to do the job and balance my dressage saddle, but it's a pain to take them out.
Date published: 2012-04-26
Rated 5 out of 5 by from What a difference After discovering my horses saddle was probably lying on here withers, I realized that my Thinline Comfort Pad could accomodate inserts. It has made a world of difference in the way she moves. Her shoulders feel so much looser. I do not have to buy a new saddle!! Hurray!!!
Date published: 2012-04-11
Rated 4 out of 5 by from Fixed the problem! Bought these with the Trifecta Thinline pad. Sweat marks are even now- did the trick ;).
Date published: 2012-03-16
Rated 5 out of 5 by from Great shims for the best shimable pad! Bought the trifecta pad for my 'Shark fin' wither-ed gelding. Great for filling in by the withers and lifting in the back without adding a ton of bulk. I only gave the shims a 3 for fit because they were a pain in the butt to get in. Overall, great pad and great shims. I HIGHLY suggest one for every rider!
Date published: 2011-07-18
  • 2016-08-28T11:33CST
  • bvseo_cps, prod_bvrr, vn_cps_3.3.0
  • cp_2, bvpage2n
  • co_hasreviews, tv_1, tr_25
  • loc_en_US, sid_9453, PRD, sort_mostRecent
  • clientName_SmartPak
Healthy Horses  ❤  Happy Riders