Breathable mesh upper with FlexFilm overlays, supportive synthetics, and a multidirectional cross strap to lock the foot in place. Die-cut EVA midsole. Full-length 11-spike nylon plate with XT-600™ hard rubber outsole provides great propulsion and the proper traction on a variety of surfaces. Includes 3/8" compression tiered spikes and a wrench. Wt. 9.9 oz.