ASICS Women&#39;s Hyper-Rocketgirl SP 3 Track & Field Shoe,ASICS,G953Y.0143,ASC1359" /> 100% Synthetic Synthetic sole Women's specific last enhances performance through fit Nylon spike plate increases durability and traction on all surfaces Combination lasted for rearfoot stability and forefoot flexibility Synthetic leather and open mesh upper is light, comfortable and breathable, and enhances performance and fit