The ornamental design for a shoe upper, as shown and described.
FIG. 1 is a front perspective view of a shoe upper showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a rear perspective view thereof; and,
FIG. 4 is an enlarged view of the claimed region in FIG. 2, shown in isolation.
The dot-dash lines immediately adjacent to the shaded area represent unclaimed boundaries of the design. The dot-dash lines showing the remainder of the shoe are for environmental purpose only and form no part of the claimed design.
The contrast in shading represents a contrast in appearance only and does not represent any particular color, material, texture or finish.