The Nike Air Max 180+ III SL features a revolutionary approach to heel cushioning. Synthetic leather upper with strategically placed synthetic provides a conforming fit. Pebax® cage surrounds and supports the Air-Sole® unit that is constructed to provide the most heel cushioning from an Air Max® unit. BRS 1000™ carbon rubber and Waffle Fill™ combine with the Bareflex outsole pattern for a flexible, smooth, and durable ride. Nike+ technology. Wt. 12.8 oz.