The ornamental design for pants with an elasticwaistband, as shown and described.
FIG. 1 is a front elevation view of pants with an elastic waistband showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is an enlarged cross-sectional view taken along line 7-7 in FIG. 5; and,
FIG. 8 is a partially enlarged cross-sectional view taken along line 8-8 in FIG. 1.
The dash broken lines shown on the drawings represent stitching, and the dot-dash broken lines illustrate portions of the pants. The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.