headache hat the original - wearable flexible three row ice pack for migraines & tension headaches eye mask long lasting cooling no mess ice therapy stress relief tension relief standard size (black) headache hat the headache hat is wearable cooling therapy for headaches and migraines. the patent-pending, soft, lightweight, and flexible wrap design can be worn comfortably - hands-free. the 21 individual ice packets come loaded in the wrap and provide long-lasting ice without the water melting on you! ice cubes are individually placed in flexible spandex and can be moved and wrapped around the head right out of the freezer (or refrigerate for cool relief). wear while working around the house or laying down. this item is a thick wrap that forms a hat when worn - note there is a small opening on top so there is no ice on one portion of the head. materials: - ice cubes made in usa, new jersey and contain: purified water over 99.99%, earthtec less than 0.6ppm (0.6%) - the water contents and additives are non-toxic, non-flammable, and completely safe. - as the product is primarily water. the additive is non-chlorine potable water safe, water treatment as a bactericide, and algaecide. - spandex/polyester blend fabric is made in china - assembly and packaging are done in the us.