We use an extra soft micro plush fabric to craft this exceptional product. Comfort Booties provide 100% all natural aromatherapy. The 12 herbs, flax and other natural ingredients contour your feet and help to relieve stress, tension, cramps and muscle discomfort. Hot or cold, Comfort Booties can relax, rejuvenate and restore your body and soul. Microwave or freeze for instant therapy. Note: Intended for use in a resting position. Not intended for walking. Dimensions: 10" x 5" x 8".