The same lightweight speed you know and love with a breathable, water-resistant upper to carry you through any run, rain or shine. Breathable mesh upper with FlexFilm overlays for secure lockdown and comfort. Runshield and FlexShell fabric combine for water-resistant protection in a lightweight, flexible upper. Plush RUNDRY collar lining wicks away sweat to keep you feeling dry, fresh, and comfortable. High-abrasion EVA+ midsole for durable cushioning and PowerGrid heel insert with Grid technology to center your foot, absorb shock, and distribute pressure for the most natural stride possible.Durable XT-900 carbon rubber outsole with Traingular Lug Design for traction. Durable XT-900 carbon rubber outsole with Traingular Lug Design for extreme traction. Wt. 7.8 oz.