Foot Warmer Warmed Insole Ginger Heating Pads Heating Warming Stickers Long-Lasting Sole Self-Heating Shoes Heat Pack Insole Foot Warmer

I opened a pack to try it out, and it heats up pretty quickly with a nice high temperature, so I don't have to worry about cold feet anymore. Plus, after using the heat pack, I can use it for my plants, which is really eco-friendly. The seller even included an extra pack, which was a nice touch.