Singlet

FIG. 1 is a top, front, right-side perspective view of a singlet; FIG. 2 is a bottom, back, left-side perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a back view thereof; FIG. 5 is a left-side view thereof; FIG. 6 is a right-side view thereof; FIG. 7 is a top view thereof; and, FIG. 8 is a bottom view thereof. The dashed broken lines that depict numbers and letter form no part of the claimed design. The remaining dashed broken lines depict stitching that forms part of the claimed design. The dot-dashed broken lines represent boundaries of the claimed design and form no part of the claimed design.