FIG. 1 is a perspective view of the chair seat of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a cross-sectional view thereof taken along line II of FIG. 2; and,
FIG. 9 is a right side view of the present invention also showing the article in broken lines in which the design is embodied that is not part of the claimed design.