about 16 mm weight 16 29 g is released and allowed to free fall onto the test piece from a distance of 460 mm above the test piece and a maximum impacted perpendicular distance d 1 at the case is measured from the following equation 3 the impact resilience r is calculated d 0 is a free fallen distance of the rigid ball mm and d 1 is a maximum impacted perpendicular distance mm in addition in fig1 reference numeral 2 shows an outer cover comprised of a synthetic resin made sheet etc and numerals 4 and 5 are hanging grooves provided on the seat surface portion 1 also in the seat cushion pad for automobiles of the present invention the seat surface portion 1 is pressed by a pressure plate having a diameter of 60 mm and the 3 isr value calculated by the above described equation 1 is at least about 6 or the 5 isr value calculated by the above described equation 2 is at least about 4 by establishing the 3 isr value or the 5 isr value in the above described range a cushion pad is obtained which is comfortable to sit on because the surface thereof gives a soft feeling and the occurrence of numbness and a tired feeling on the part of the occupant is sharply reduced even during long periods of driving it is considered that reduction in the occurrence of numbness and a tired feeling are achieved by virtue of the following reasons firstly in a conventional cushion pad a car driver or passenger is exposed to a strong pressure over.