COOLOOP Cooling Cover M Size Gray [Cojit]

Please check the size of your neck ring before purchasing. Neck rings from other companies may not fit. A two-layer structure that prevents the coldness of the neck ring from escaping into the outside air!A two-layer structure that prevents the coldness of the neck ring from escaping into the outside air! *It takes 45 minutes to melt in an environment of 36℃. Comparison of frozen neck rings with and without this product (compared to our company) With hook to prevent slippage Neck ring size M compatible