A headrest for use in vehicles comprising a headrest frame, a pair of headrest stays fixed to the headrest frame, a pad material for enclosing the headrest frame, and a surface skin material provided with an opening at the underside thereof and serving to cover a headrest pad assembly formed by enclosing the headrest frame with the pad material, wherein cut-away holes for allowing the headrest stays to pass there-through are formed at one of both opposed rims of the opening and one of strip-like male and female fasteners which is divided into three parts is attached to the one rim which is divided into three parts because of the cut-away holes, while the other of the male and female fasteners which is divided into two parts at the center thereof is attached to the other rim of the opening of the surface skin material.