Perforated neoprene that allows the leg to breathe and heat to escape so your horses legs stay cooler A shock absorbing splint pad gives maximum protection to the splint bone, tendons, and other soft tissues. The splint pad guards against crossfire injuries and allows for a closer, cleaner fit. A suspensory rib is positioned to ensure proper boot alignment. A patented Cradle Fetlock System provides maximum support neoprene. An extended layer of tough, bulletproof material fitted on the cup area ensures durability. A series of fitting darts provides for a clean, close fit. Bound edges help keep dirt and debris out.