Abstract: An impact resistant running shoe insert provides impact resistance for minimalist and non-minimalist running or hiking shoes. Three flat layers are superimposed on each other. A hard layer provides impact resistance, a soft layer atop of the hard layer provides comfort and friction between the insert and a user's foot, and a third layer below the hard layer minimizes slippage between the insert and the user's shoe. A full length insert may be used in a single toe box shoe, and a partial length insert is provided for use with multiple toe box shoes. The partial length insert has a tapered edge between the forefoot area and the toe area in order to minimize discomfort.