What is claimed is the ornamental design for an insulating garmet, as shown and described.
FIG. 1 is a perspective view of an insulating garment shown in an environment of use and showing the new design;
FIG. 2 is a perspective view shown removed from the environment and in an alternate configuration of use for clarity of disclosure;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side elevated view thereof; and,
FIG. 6 is a left side elevated view thereof.
The dash-dot-dot line in FIG. 1 illustrates environmental subject matter and forms no part of the claimed design. The dash-dash lines illustrate portions of the insulating garment and form no part of the claimed design.