Woof Wear Smart Event Front Boots Black. The Smart Event Boots has been designed for use during the most advanced, high intensity disciplines - particularly cross country and provides 360 degree protection to the horse's legs. The Smart Event Boots offer Tri-layer cannon bone protection and have a Speedi-cut design for maximum protection. The boots feature a flexible PU outer along with protective mesh to prevent dirt entering which could then cause rubbing. The Smart Event Boots benefit from the D30 ultimate impact protection and breathable neoprene liner to help keep your horses legs cool and also to aid in the reduction of fatigue. Read more… D3O impact protection is a patented technology used to create a soft and flexible shock absorbing barrier featuring unique molecular properties. At rest its molecules flow freely, but on impact, they lock together to absorb impact energy and reduce the force transmitted. This reaction is counter intuitive. The greater the force of the impact, the more the molecules lock together and the greater the protection.