thermal insulation

Abstract

The present invention relates to a heat-retaining device that is heated in a microwave oven. The trapezoidal portion shown in the front view is a pocket with openings on both sides. As shown in "Reference Figure 1 showing usage," the main body can be placed against the stomach and secured with a string at the back to warm the lower abdomen, while simultaneously warming the fingertips by placing them in the pockets. As shown in "Reference Figure 2 showing usage," it can also be used by placing it against the waist and tying the string at the stomach to warm the lower back. The crescent-shaped indentation shown in the "rear view" is a seam, as shown in "AA cross-sectional view," and this seam prevents the granular heat-retaining material inside from shifting.

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