The updated Ignition II trail running shoe provides a secure fit and protects your feet from trail debris. Synthetic leather and 3D air mesh upper. Dynamic bootie construction envelops your feet in breathable mesh yet helps keep out pebbles and dirt. Three part midsole: -Dual Density EVA for stability and cushioning. -EVA SuperSkin Plate for torsional stability and stone bruise protection under the metatarsal heads. -Nylon shank for lateral and torsional flex control. Multi-directional Ignition outsole. Strobel lasted. Heel TPU clip for stability and upper/outsole integration. 13. 00 oz. Product measurements were taken using size 9. Please note that measurements may vary by size.