The ornamental design for a glass, as shown and described.
FIG. 1 is a top perspective view of a glass in accordance with my new design;
FIG. 2 is a front elevational view thereof, rear and side elevational views thereof being identical;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is an enlarged and fragmentary front elevational view of a top portion thereof; and,
FIG. 6 is an alternative enlarged and fragmentary front elevational view of the top portion thereof.
The broken line showing of the top and bottom of the glass in FIGS. 5 and 6 illustrates the boundaries of the claimed design. The broken lines form no part of the claimed design.