FIG. 1 is a top perspective view of a drinking tumbler with base and sipper, showing our new design;

FIG. 2 is an exploded elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 8 is an enlarged cross-sectional view thereof on line 8--8 in FIG. 7; and,

FIG. 9 is an enlarged cross-sectional view thereof on line 9--9 in FIG. 5.