The Nike Air Zoom Structure 25 is designed for stability and comfort, ideal for both short training runs and longer distances. It features a breathable engineered mesh upper with targeted zones for support and a midfoot support system to help control pronation. The Cushlon 3.0 foam midsole, combined with a Zoom Air unit in the forefoot, provides exceptional cushioning and a responsive feel with every stride. The shoe offers a form-fitting forefoot for comfortable toe room, a wider base for a fluid stride, and increased Cushlon foam for durable support. The pendulum-shaped foam supports all three phases of the stride, ensuring optimal flexibility during impulse, a smooth forward motion, and perfect cushioning. Closure is via lacing, and the toe type is round.