Cool Vest Cooling Vest Heat Stroke Prevention Goods Water Cooling Clothing Cooling Clothing Summer Cold Workwear Product Category: Ice Pad Fabric Material: PVA Length: Approximately 57cm Weight: 200g Secured with Velcro on both sides. Feels like rubber. Made of a special PVA fabric with strong water absorption and moisture retention. When soaked in water, the water is trapped in the vest. It absorbs body heat and converts it into heat, lowering body temperature and creating a cooling sensation. After thoroughly wringing out the water, it gradually hardens, preventing the entry of mold and other bacteria. When reusing, simply soak it in water to absorb water again. This allows for repeated use. Soak the absorbent vest in water for 5 minutes, and it will last for up to 10 hours per use. Please refrain from using it in air-conditioned rooms. There is a risk of catching a cold. If you would like a discount for bundled items, please contact us in advance.