The melted neck ring will restore the cold. (*Resurrection level may vary depending on the environment. Keep it cool for about 6 hours (when filled with frozen ice packs) This product includes a frozen neck ring and stays below approximately 76°F (28°C). Made from a fabric that uses vapor-deposited aluminum film to keep the neck ring cold longer. Comes with a loop that can be attached to your bag. Includes an ice pack (freeze it in the freezer before use. Neck ring compatible with M and L sizes. □ Insert the neck ring and ice pack together
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