We claim the ornamental design for an insole, as shown and described.
FIG. 1 is a bottom perspective view of an insole showing our new design;
FIG. 2 is a top perspective view thereof;
FIG. 3 is a second bottom perspective view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a side view thereof;
FIG. 7 is a side view of the opposite side of FIG. 6
FIG. 8 is a front view thereof; and,
FIG. 9 is a rear view thereof.
The insole shown in FIGS. 1-9 is for a right shoe. The left shoe insole is a mirror image of the right shoe insole and is not shown as it is considered duplicative.
The dash-dash broken lines shown in the drawings illustrate portions of the insole that form no part of the claimed design. The dash-dot broken lines define the bounds of the claimed design and form no part thereof.