This running shoe is built for the neutral to under-pronator who requires enhanced cushioning. If you are looking for maximum cushioning for your runs look no farther. Breathable mesh upper with synthetic overlays for support. Nike Shox cushioning system in the heel with flexible Phylon forefoot provides maximum comfort. Nike+ capable so you can track all your hard work and dedication. Full length BRS 1000 carbon rubber outsole for ultimate traction and durability.