Our cooling neck gaiter is made of polyester fiber and ice silk, it using permanent chemical-free fabric technology. It can quickly cool your skin and keep it cool, which is very suitable for hot weather.You can soak the cooling face mask in water (ice water is better), wring it out, it can cool very fast and keep cool to wear.It is also UV protection from the sun’s rays, breathable and water-absorbent, elastic and quick-drying, lightweight and durable, easy to carry, and also has the function of preventing sand and wind, which is very suitable for harsh environments and hot summers.