NIKE Air Zoom Structure Triax+ 11 White/Blue Womens Running Shoes 318092-141 Expanded open sandwich mesh for breathability with synthetic panels on the medial sides for extra support. Zoom Air in the heel and forefoot for responsive cushioning with innovative flexible Dual Density radiused crash pad for softer foot strikes. BRS 1000 rubber heel outsole for durability and solid rubber Waffle Fill outsole configuration for traction.