The Nike Air Zoom Structure 25 features a breathable technical mesh upper with targeted support zones. It has a Cushlon 3.0 foam midsole with a Zoom Air unit in the forefoot for cushioning and stability. The durable waffle outsole provides support and stability, while the metatarsal support system improves arch support to control pronation. The Cushlon 3.0 foam underfoot and higher stack height make it very stable and supportive. Closure: lacing. Toe type: round toe.