The ornamental design for shoes, or a portion thereof, as shown and described.
The FIGURE is a top view of shoes, or a portion thereof, according to a first embodiment.
Applicant is not claiming any side view, bottom view, or thickness. Thus, only the top view in the FIGURE is illustrated.
The broken lines in the FIGURE form no part of the claimed invention. It is contemplated that any one or more of the broken lines shown in the FIGURE can be converted into solid lines to form part of a claimed invention herein. Likewise, it is contemplated that any one or more of the solid lines shown in the FIGURE can be converted into broken lines to form no part of a claimed invention.