Saucony Women's Grid Excursion 2 Trail Running Shoe 100% Nylon Non-visible Grid System offers stable cushioning at the heel Injected midfoot cradle provides increased support and locks the foot to the midsole HRC Strobel Board increases cushioning and comfort and the aggressive triangular lug design maintains traction and cushioning on all terrain Aggressive tread meets airy breathability in this adventurous trail shoe from Saucony.