I claim the ornamental design for a bra, as shown and described.
FIG. 1 is a perspective view of the bra of my claimed design, applied to a person;
FIG. 2 is a front view of the bra of FIG. 1;
FIG. 3 is a back view of the bra of FIG. 1;
FIG. 4 is a left side view of the bra of FIG. 1;
FIG. 5 is a right side view of the bra of FIG. 1;
FIG. 6 is a top view of the bra of FIG. 1; and,
FIG. 7 is a bottom view of the bra of FIG. 1.
The broken lines in FIG. 1 showing a person are for the purpose of illustrating environmental structure and form no part of the claimed design; the broken lines in FIG. 1 and FIG. 3-FIG. 7 used to render the backside of the bra designate unclaimed subject matter and form no part of the claimed design; and the broken lines in FIG. 1, FIG. 2, and FIG. 4-FIG. 7 used to render a bow of the bra designate unclaimed subject matter and form no part of the claimed design.