Premier Equine Salvatore Rubber & Leather Grip ReinsSalvatore reins feature an innovative combination of the finest Italian leather and rubber materials. The inside surface of the rein, which faces the horse, is composed of rubber with a fine bobbled pattern for increased grip. The outside surface of the rein is covered with our sumptuous Italian leather for a sleek and professional finish. Each rein has a round raised design on the exterior surface, covering the first third of the rein from the bit.