Named after the Samurai battle motto of Furin Kazan, the Mizuno Men's Wave Kazan is a tenacious trail running shoe that's equally suited for casual trail runs and epic ultra marathons. Weighing in at a mere 9. 5 ounces, this shoe is light enough to be blazingly fast on short loops, yet it retains rugged durability with its aggressive X studded sole. This aggressive sole features strategically placed X patterns at the forefoot for plenty of grip over loose dirt and craggy terrain. Its midfoot X groove allows the heel and forefoot to act independently over uneven, off camber terrain, facilitating sure footed grip when it matters most. In addition, its Concave Wave heel prevents excessive movement for enhanced stability.