To fight the year's higher-than-average temperatures, our reusable neckcooler cooling devices have been tested and developed in the United States. Our neckcooling products can reach temperatures of 38.1°F and constantly cool your skin through evaporation.These neckcoolers are reusable and simple to use, with easy-to-follow activation instructions printed on them. Please see our other sites on this website for further information. Chill Factor Performance cooling products are designed and manufactured in the United States of America.