Double the effect of absorbent fibers and cool gel. The functional neck cooler has a 5-layer construction that combines a cool feel and a refreshing feel. Do not wear cool gel, just soak it in water and feel cool and cool. An eco-friendly neck cooler to prevent heatstroke. Please read the usage instructions and precautions in the storage pouch carefully before using. When using gel, please be sure to attach it to the main body cover before using. Avoid excessive weight and crash If the product is damaged, please stop using it immediately. Depending on the environment and usage conditions, there may be differences in the cold sensation. In addition, there may be individual differences in cooling sensation. After use, please dry thoroughly before storage.