Nunn Finer All Leather Side ReinsWe love these Nunn Finer leather side reins because they don't allow allow the horses to bounce or lean. It was made with the advice from internationally acclaimed dressage trainer Paul Belisisk. Paul Belasik, internationally acclaimed trainer and author of "Riding Toward the Light," "Exploring Dressage Technique," and "Songs of Horses," and founder of the Pennsylvania Riding Academy, has designed these solid leather side reins after the solid reins