Saucony Women's Ride 6 Running Shoe 100% Synthetic Imported Synthetic sole Shaft measures approximately 2.5" from arch This is a neutral shoe designed for normal to mild under-pronation HydraMAX collar lining ComfortLite sockliner PowerGrid midsole SRC Impact Zone Deep forefoot flex grooves iBR+ outsole Long distance runs are met with speed and responsiveness with Saucony's flagship neutral shoe, the Ride 6.