The key impact areas are protected by Poron XRD material which is flexible until subjected to a high impact force when it instantaneously firms into a unique protective shield. Using breathable neoprene and a vented flexible PU shell, the new Smart Tendon Boot provides exceptional protection to the horse's delicate tendon area. Poron XRD material strike zone, Ventilated and flexible PU shell, Breathable neoprene layer, Secure elastic touch and close fastening, Fetlock location technology for secure fit and increased ventilation Suitable for show jumping, dressage and general schooling right up to top-level competition.