The ornamental design for a sheetmaterial, as shown and described. -
FIG. 1 is a perspective view of the sheet material;
FIG. 2 is a top view of the sheet material of FIG. 1;
FIG. 3 is a bottom view of the sheet material of FIG. 1;
FIG. 4 is a side view of the sheet material of FIG. 1;
FIG. 5 is a side view of the sheet material of FIG. 1, opposite the side view shown in FIG. 4;
FIG. 6 is an end view of the sheet material of FIG. 1; and,
FIG. 7 is an end view of the sheet material of FIG. 1, opposite the end view shown in FIG. 6.
The claim is directed to the configuration of circles drawn in solid line. The broken lines represent unclaimed portions of the sheet material and form no part of the claimed design.