The ornamental design for a sunprotectioncover, as shown and described.
FIG. 1 is a perspective view of a sun protection cover, showing my new design;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a bottom view of FIG. 1;
FIG. 6 is a side view of FIG. 1; and,
FIG. 7 is an opposite side view of FIG. 6.
The broken line portion of FIG. 1 is included to show environment that form no part of the claimed design. The dot-dot-dash line portion of FIG. 1-3 represent stitching.