FIG. 1 is a front, top, and left side perspective view of a shelving system embodying our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front, bottom, and right side perspective view thereof;

FIG. 9 is a partial bottom plan view thereof, taken from between the first and second shelf units; and,

FIG. 10 is a partial front, top, and left side perspective view thereof.

The shelving system in accordance with the present design has elements shown broken away to indicate unclaimed length in FIGS. 1-5, 8, and 10. All features illustrated in phantom line are expressly disclaimed and form no part of the claimed design.