The Nike Air Zoom Structure 25 'Black Iron Grey' DJ7883-002 is designed for comfort and stability. The breathable technical mesh upper features targeted support zones. The Cushlon 3.0 foam midsole includes a Zoom Air unit in the forefoot for enhanced cushioning. A 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 contribute to its stability and supportive feel. Closure is by lacing with a round toe.