New Balance is one of several great shoe companies on the forefront of cutting edge shoe designs. The Leadville Ultramarathon takes runners 100 miles through the challenging terrain of Leadville,Colorado every August. In celebration of such a difficult run,New Balance has designed a shoe specifically for the conditions that all types of runners will face when doing the Leadville 100 and other similar ultra-runs. The thought and research that has gone into this shoe not only makes it durable,but smart as well. The shoe takes into consideration many different dynamics of the runner'sfoot as well as the conditions the runner might face.