Equilibrium Tri-Zone All Sport Exercise Boots in Black. The Tri-Zone All Sport Boots are robust all rounder boots ideal for a variety of disciplines. The All Sport Boots feature a triple Airlite layer system which consists of two shock absorbing layers of EVA to reduce the risk of concussion injuries and a tough polycarbonate tendon protection layer that can withstand penetration. The All Sport Boots offer a distinctive design of oval holes and shaped raised areas that minimise weight, help keep the legs cool and dry and disperse shockwaves. Read more… The Boots are lightweight and breathable, do not add any unnecessary weight in order to reduce injuries caused by tiredness, are easy to fit and maintain and feature a fine mesh layer to prevent grit and debris from getting inside the boot. The All Sport Boots offer a double locking velcro fastening for security and are designed to be used on front or hind legs. Fabric & Care Ethylene-vinyl Acetate