I claim the ornamental design for a shoe cover, as shown.
FIG. 1 is a top plan view of a shoe cover, showing my new design.
FIG. 2 is a bottom plan view of the shoe cover of FIG. 1, showing the heel opening.
FIG. 3 is a side view of the shoe cover of FIG. 1.
FIG. 4 is a side view of the shoe cover of FIG. 1 associated with a foot and shoe of a wearer, where the size of the heel opening is dependent upon the size of the shoe; and,
FIG. 5 is a side view of the shoe cover of FIG. 1 associated with a leg and shoe of a wearer, where the size of the heel opening is dependent upon the size of the shoe.
It should be understood that the flexible nature of the claimed design will result in a variety of appearances when worn over a shoe, as best exemplified in FIG. 4 and FIG. 5. The broken lines in the drawings illustrate unclaimed environmental structure.