I claim the ornamental design for a bra, as shown and described.
FIG. 1 is a top, front, and right side perspective view of a bra showing my new design with environment;
FIG. 2 is a top, front, and right side perspective view of the bra of FIG. 1, showing my new design without environment;
FIG. 3 is a front elevation view of the bra of FIG. 1;
FIG. 4 is a rear elevation view of the bra of FIG. 1;
FIG. 5 is a left side elevation view of the bra of FIG. 1;
FIG. 6 is a right side elevation view of the bra of FIG. 1;
FIG. 7 is a top plan view of the bra of FIG. 1; and,
FIG. 8 is a bottom plan view of the bra of FIG. 1.
The dot-dash broken lines are directed to environment and form no part of the claimed design. The cross hatching pattern sporadically depicted throughout the views is intended to indicate that the pattern is continuous throughout the surface on which the pattern is shown. The short evenly spaced broken lines represent stitching and form part of the claimed design.