A front fork includes an inner cylinder disposed inside an inner tube, a piston rod moving with an outer tube, a piston attached to a lower end portion of the piston rod and sectioning an oil chamber in the inner cylinder into a lower oil chamber and an upper oil chamber and a damping force generating portion at an outside of the inner tube having a first damping force generating portion generating resistance in working oil flowing in one direction in an external flow path, a second damping force generating portion disposed in series with the first damping force generating portion in the external flow path to generate resistance in working oil flowing in the other direction, and a pressurization portion having an oil reservoir chamber communicated to an intermediate oil chamber and pressurizing working oil in the intermediate oil chamber.