ZAMST COOL SHADER Vest Material: Polyester/Polyurethane Used a few times, but I believe there are no noticeable scratches or stains. I am selling this because I have another one. - This product cools the body by 15°C below skin temperature. Simply wet it with water, wring it out, and shake it to activate the evaporative cooling effect. - It becomes cold every time you shake it. Long-lasting cooling. Even if you feel the coldness weakening, it will become cold again with shaking. *The effect decreases as the product's water content decreases. In that case, wet it with water again. - UV protection: Cuts over 97% of UV rays, and can also be used for sun protection. Recommended for cooling during rounds, as well as for heat and UV protection during sports観戦 and golf観戦.