Performance horses need extra support because they are exposed to difficult maneuvers such as hard stops, backing, deep turns, jumps, and long, full strides. As a result of performing these maneuvers the hock reaches a fully flexed position and a “vertical load” force is applied to the hock joints and the soft tissue of the lower limbs. Since the suspensory ligament attaches at the top of the cannon bone, just below the lower hock joints, it can become stressed or injured due to these forces from above.

The extra height of this new boot will help to save the upper suspensory ligament from injury during these strenuous performance maneuvers. The Iconoclast® Extra Tall Orthopedic Sport Boots features four upper straps in addition to our patented Double Sling® Straps which wrap around the base of the fetlock, lifting and cradling it with unparalleled 360-degree lateral support. Iconoclast®Boots provide properly balanced support to the vertically moving tissue of the equine leg. No other boot or wrap in the industry can give this much real, balanced, proper support.

Please refer to the Measurement and Sizing instructions below to see if our Extra Tall Orthopedic Support Boots will fit your horse.


The Iconoclast® Orthopedic Support Boot has absolutely REVOLUTIONIZED equine leg support. Iconoclast® Boots are specifically designed to support and protect the suspensory and sesamoidial regions by providing 360-degree support of the equine leg. Never has this method of support been provided for the equine athlete through a strap on, non-restrictive device.

Our entire line of Iconoclast® Boots were designed by horse trainers and leading veterinarians who were unsatisfied with the performance of every other equine boot in the market place. The equine leg needs support and protection against the daily rigors of extreme physical activities and there has not been a boot that adequately meets both of those demands until now. THAT IS THE ICONOCLAST® DIFFERENCE!


“The Iconoclast® Equine Support Boot offers more effective sesamoidial stability and suspensory support than any other boot I’ve ever encountered. I prescribe them to my clients with complete confidence and satisfaction in caring for their equine partners.”

Chris Ray DVM



Please follow these instructions to ensure the Iconoclast® Extra Tall Orthopedic Support Boots are right for your horse before moving on to determine what size you need.

Using a soft tape, measure from the center of your horse’s fetlock joint up to below the hock as shown in the illustration. The Blue Marker shows the height of the Extra Tall Orthopedic Support Boots while the Red Marker shows the height of our regular Orthopedic Support Boots. Keep in mind, these are NOT the measurements of the boot itself, but the actual measurement of the horse’s leg.

If your horse is tall enough to wear the Iconoclast® Extra Tall Orthopedic Support Boots please continue below for further Measurement and Sizing Instructions for your horse.


The sizing chart below is appropriate for all Iconoclast® Orthopedic and Rehabilitation Boots. We recommend using a soft tape measure. If you do not have a soft tape measure you can use something like string, wrap it around the fetlock, mark where the end meets the rest of the string and then simply lay it flat next to a tape measure, ruler or yard stick to get your measurement.

Be sure to measure both the FRONT & BACK fetlocks as they are often different sizes. Customers regularly order boots in one size for the front legs and a different size for the hind legs.

  • * Available in sizes M, L, XL, XXL & XXXL

  • Medium: 9.5 – 10.5 in. / 24.13 – 26.67 cm

  • Large: 10.5 – 11.5 in. / 26.67 – 29.21 cm 

  • XL: 11.5 – 12.5 in. / 29.21 – 31.75 cm

  • XXL: 12.5 – 13.5 in. / 31.75 – 34.29 cm

  • XXXL: 13.5 – 14.5 in. / 34.29 – 36.83 cm



For information on how to properly place your Iconoclast® Equine Support Boots on your horse examine this diagram or watch the following video.