In a vehicle rear seat, slits are respectively formed in side wall portions of retainers provided on a vehicle body side and are respectively open at upper end sides of the side wall portions. Hinge pins respectively provided at lower end sides on side portions of a rear seat back are inserted in the corresponding slits to thereby couple the rear seat back to the vehicle body side via the retainers. Furthermore, in the vehicle rear seat, distal end sides of the hinge pins, that is, portions that protrude outward of the rear seat back, are respectively covered with covers attached to the corresponding retainers.