A shock absorber, comprising: a cylindrical outer tube with one end as a closed end and the other end as an open end; an inner tube partially fitted to the outer tube so as to be able to move forward and backward; a cylinder provided inside the outer tube and extending inside the inner tube; a rod extending from an end portion of the inner tube exposed from the outer tube to an inside of the cylinder; a piston which is provided on the rod and divides the inside of the cylinder to form a gas chamber; a first lubricating member, which is provided on a side closest to the gas chamber in an outer peripheral surface of the piston so as to be capable of sliding contact with an inner peripheral surface of the cylinder, and which contains a lubricant; a first seal member, which is provided at a position farther from the gas chamber than the first lubricating member in an outer peripheral surface of the piston, and in which a sealing lip slidably in contact with the inner peripheral surface of the cylinder faces the gas chamber; a second seal member, which is provided at a position farther from the gas chamber than the first seal member in the outer peripheral surface of the piston, and in which a sealing lip slidably in contact with the inner peripheral surface of the cylinder is directed opposite to the gas chamber; characterized by a second lubricating member, which is provided between the first seal member and the second seal member in the outer peripheral surface of the piston so as to be capable of sliding contact with the inner peripheral surface of the cylinder and, which contains a lubricant. a cylindrical outer tube with one end as a closed end and the other end as an open end; an inner tube partially fitted to the outer tube so as to be able to move forward and backward; a cylinder provided inside the outer tube and extending inside the inner tube; a rod extending from an end portion of the inner tube exposed from the outer tube to an inside of the cylinder; a piston which is provided on the rod and divides the inside of the cylinder to form a gas chamber; a first lubricating member, which is provided on a side closest to the gas chamber in an outer peripheral surface of the piston so as to be capable of sliding contact with an inner peripheral surface of the cylinder, and which contains a lubricant; a first seal member, which is provided at a position farther from the gas chamber than the first lubricating member in an outer peripheral surface of the piston, and in which a sealing lip slidably in contact with the inner peripheral surface of the cylinder faces the gas chamber; a second seal member, which is provided at a position farther from the gas chamber than the first seal member in the outer peripheral surface of the piston, and in which a sealing lip slidably in contact with the inner peripheral surface of the cylinder is directed opposite to the gas chamber; characterized by a second lubricating member, which is provided between the first seal member and the second seal member in the outer peripheral surface of the piston so as to be capable of sliding contact with the inner peripheral surface of the cylinder and, which contains a lubricant.