Shock-absorbent - proven to absorb energy from hoof concussion by over 26% and safeguard the cannon bone, tendons and soft tissue. Suspensory strap - stretches upon each impact of the hoof, allowing full ankle movement and helps to eliminate hyperextension of the fetlock. Multi-layered - exclusive ventilated limestone-based neoprene exterior and lining provide 360-degrees of protection. Contoured - strategically placed darts on both the inner and outer sides of the boot ensure a perfect, glove-like fit, keeping dirt out.