For your faster days out on the trails, Mizuno's Wave Hayate 4 brings with it a lighter and lower running sensation. The 9mm offset achieves a closer feel to the ground and the forefoot rock plate gives the added protection rocky trails require. The Michelin rubber outsole is the best in class for grip, traction and durability. A true performance trail shoe. - Wave Plate technology- ESS Rock plate- Michelin Rubber outsole