These Elite Sports Medicine Professional's Choice Boots 4 Pack are lightweight and contoured to ensure a perfect, glove-like fit while keeping dirt out. Exclusive limestone based neoprene exterior and Ultrashock lining provides 360° of protection, safeguarding the cannon bone, tendons and soft tissue while absorbing negative energy from hoof impact by over 26%. Front and hind boots are contoured differently. Front boots will not fit hind legs. It is recommended to order both front and hind boots. Professionals Choice continues to be a market leader renowned for revolutionizing the equine industry through diligent scientific research and producing the highest quality products strictly for the horse's safety and well-being. This leadership position has earned Professionals Choice the respect of top trainers, professionals and everyday horsemen all over the world.