Look good without slowing down. Built with an EVA shell for a lightweight and flexible fit, the Hydro Runner by MERRELL is a perfect choice fir staying cool on busy days.  Details EVA upper for cleaning and ease EVA shell for a lightweight and flexible fit Breathable mesh lining 100% recycled integrated EVA foam insole Lightweight high rebound EVA foam midsole for stability and comfort Merrell sticky rubber outsole tunes each outsole with durable traction that grips when and where you need it Stack Height: 30.0-20.0mm Drop: 10mm Lug: 3mm Vegan-Friendly