The ornamental design for a wallet, as shown and described.
FIG. 1 is a top and front perspective view of a wallet showing my new design;
FIG. 2 is bottom and rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a right side elevational view thereof; and,
FIG. 9 is a front perspective view of the wallet in use.
The broken lines along edges of the front and rear surfaces of the wallet are shown to illustrate stitching. The broken lines disclosing a key, a key holder, portions of credit cards and a loop in the drawings are shown to illustrate environment only and form no part of the claimed design.