The ornamental design for a coverall cover-up, as shown and described.
FIG. 1 is a plan view of the outer surface of the coverall cover-up the broken lines represent a top-stitching.
FIG. 2 is a plan view of the inside surface of the coverall cover-up the broken lines represent top stitching.
FIG. 3 is a side cross-sectional view of the coverall cover-up taken along line 3--3 of FIG. 2; and,
FIG. 4 is a perspective view of the coverall cover-up in a tied position. The broken lines in FIG. 4 are shown for illustrative purposes only and are not intended to be a feature of the invention.