The ornamental design for a wristband, as shown and described.
FIG. 1 is a perspective view of a wristband in accordance with our new design;
FIG. 2 is an enlarged view of the encircled portion in FIG. 1 showing an uneven inner surface of the wristband;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is another perspective view of the wristband in accordance with our new design;
FIG. 10 is a cross-sectional view taken along line 10-10 of FIG. 9 showing an uneven inner surface of the wristband;
FIG. 11 is an enlarged view of the encircled portion in FIG. 10 showing a concavity with broken lines of the wristband;
FIG. 12 is an enlarged view of the encircled portion in FIG. 10 showing a portion of the cross section with broken lines of the wristband; and,
FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 9 showing an uneven inner surface of the wristband.
The broken lines in FIGS. 1-2 and 9-12 encircling enlarged portions of the claimed design and cross-sectionals form no part of the claim design. The remaining broken lines depict portions of the wristband that form no part of the claimed design.