✅ Popular for their warmth, a winter hit item: "Aluminum Heat Retention Shoes" ✅ Product Details: Warm from the feet up, "360° Aluminum Heat Retention" These boots use an aluminum heat retention sheet on the lining, wrapping the foot 360°. They utilize the infrared rays emitted by the body to achieve excellent heat retention. They keep your feet warm with high insulation even in extremely cold environments. ✅ Size: Unisex 25.0cm ✅ Long-term storage item. Although new, there may be some age-related deterioration. They have been tried on once.