An equine ankle brace including a panel of a resilient thermally insulating, heat retaining material, having a cup-shaped bottom portion for enabling the panel to be wrapped around the horse's ankle to readily conform to it. The panel has an inner surface and an outer surface, a pair of front marginal edges including releasably securable fastening straps for securing the brace in place. A stabilizing, e.g., leather, patch is fixedly secured to the panel at the location of the cup-shaped bottom portion. A fetlock support strap is fixedly secured to the stabilizing patch and includes respective portions configured to be pulled into an X-shaped overlapping relationship over the front of the brace for releasable securement to portions of the outer surface of the brace.