adidas Women's J S1 XCR Trail Running Shoe 100% Leather Low-profile outdoor racer provides the impact protection and comfort EVA substructure for lightweight support and open mesh nylon for best breathability and quick drying PTPP (Push Through Protection Plate) for impact protection midsole, with TPU shank in arch and forefoot for support and protection High-traction rubber outsole with speed grip provides PTPP (Push Through Protection Plate) for impact protection midsole, with TPU shank in arch and forefoot for support and protection