Armed with game-ready tech, the design is more responsive than the original. Forefoot Air Zoom provides a turbo boost to the first step. Player-approved Cushlon offers coast-to-coast cushion. A responsive sockliner provides soft step-in bounce. forefoot air zoom unit for low profile responsiveness midfoot webbing system for security lightweight durable upper cushlon foam midsole for plush underfoot sensation modernized herringbone traction pattern fits small, recommend ordering a half size up