Fit: Newly-designed last is specifically engineered for a perfect women's fit. Open sandwich mesh provides extra medial support. Soft overlays in the forefoot

Cushioning: Zoom Air in the heel and forefoot. Innovative flexible Dual Density radiused crash pad for softer foot strikes. Footbridge for added support. A more flexible forefoot

Traction: Large Duralon insert for outstanding longevity and traction. Asymmetrical arch for support and torsion. BRS 1000 rubber heel

Other: Nike+ ready

Additional Widths:

Nike Air Zoom Structure Triax+ 11 Standard Width