Run comfortably and fast in the Nike Zoom Structure. Featuring Dynamic Support technology,it provides a secure fit and stable ride - a great combo for runners who have a mild-to-moderately overpronated gait. Breathable mesh upper helps feet stay cool and dry.Phylon® midsole, Cushlon foam, and Nike Zoom unit reduce impact and cushion step.Outsole ensures reliable traction and has felx grooves to promote natural foot movement.