The ornamental design for a wallet, as shown and described.
1. Wallet
1.1 Cross sectional
1.2 Perspective
1.3 Perspective
1.4 Unfolded
1.5 Front
1.6 Left
1.7 Top
1.8 Back
1.9 Right
1.10 Bottom
1.11 Cross sectional
1.12 Cross sectional
1.13 Cross sectional
The broken lines do not form part of the claimed design; the dotted-dashed lines indicate the boundary between the claimed area and the unclaimed area; reproductions 1.2 and 1.3 show the inner case of the product indicated in solid lines, including the unclaimed area; the broken lines on the surface of the inner case of the product shown in reproductions 1.1 to 1.4 are stitches; reproduction 1.2 is a perspective view indicating the state in which the front panel of the outer case is folded; reproduction 1.1 indicates the state in which the front panel of the outer case is removed; reproduction 1.4 is an unfolded view indicating the unfolded state of the inner case; reproduction 1.11 is a cross-sectional view cut vertically at the left end portion of the product; reproduction 1.12 is a cross-sectional view cut horizontally at the top end portion of the product; reproduction 1.13 is a cross-sectional view cut horizontally at the bottom end portion of the product.