Updated with an engineered mesh upper that's stronger and lighter than before, the Men's Nike Air Zoom Structure 21 Running Shoe continues to cushion your stride with a dual-density midsole and a midfoot system that provides a locked-down support.
Features Include:Engineered mesh provides targeted ventilation and support. Dynamic Support system in the midsole provides a smooth transition. Full inner mesh bootie wraps the foot to enhance breathability and provide a sock-like fit. Notches on each side of the tongue allow for easy on and off. Compression-moulded Phylon on the medial side and Cushlon foam on the lateral side are fused together to create a dual-density cushioning system. Zoom Air unit in the forefoot delivers responsive, low-profile cushioning. Honeycomb outsole pattern provides great multi-surface traction. Weight: 10.4 oz/295 g (men's 10) Last: MR-10 Offset: 10 mm (12 mm forefoot / 22 mm heel) Athlete: Galen Rupp
Nike Air Zoom Structure 21 Obsidian/Blue Hero/Thunder Grey Mens Shoes 904695-404 Men's Running Shoes rTG2LiPIywWo1N