Hot Weather Must-have: The neck coolers use innovative liquid plant Phase Change Material to start freezing in environments below 18 degrees Celsius, which freezes faster and lasts longer than water, making it a must-have in hot weather.
Reusable: Neck coolers are made of Phase Change Material and can be refrozen after each use, allowing for multiple uses. Simply put the neck coolers in the refrigerator or freezer until they solidify, and enjoy them. Ergonomic Design: The neck coolers is designed to fit the curvature of the neck providing a comfortable and safe fit.