The ornamental design for a glovetether, as shown and described.
FIG. 1 is a bottom, front end, left side perspective view of a glove tether depicting my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a front end view thereof;
FIG. 7 is a rear end view thereof; and,
FIG. 8 is a top, rear end, left side perspective view thereof, shown in use, with a glove and garment shown in broken lines.
The broken lines shown in drawings are included for the purpose of illustrating unclaimed portions of the glove tether and environmental structure, and form no part of the claimed design.