1.360CompressionThe Migraine Relief hat is composed of high quality gel and fabric.The gel is thick, slightly compressible, and fits snugly against the head to help maintain pressure around the head, but it doesn't put any uncomfortable pressure on already sensitive areas, effectively helping you with pain relief.2.Cold Longerheadache Ice hat for migraine It is remarkable to help you fall asleep during episodes and sleep through the night. More gel add weight to compress, and fits snugly against the head to help maintain pressure around the head.3.Safe & NaturalThe migraine ice head wrap is made with Lycra fabric and non-toxic gel, which is soft, odorless and stays completely soft even straight out of the refrigerator.Lycra fabric has strong elasticity, durable, stretchy & completely safe.4. No-slip DesignUnlike most of the competitors' ice caps that show the top of the head and slide off from the face when walking, we smartly added a stretchy Lycra sheet on the top of the head, which can completely prevent the ice cap slip, it attaches perfectly to the head whether you're in walking, running or stationary.5.Cold and Heat TherapyHead wrap provides double use effects both microwave and freezer safe, you can choose hot or cold therapy depending on your needs. Heated in the microwave 60S-120S to help for tension headaches, frozen 2hrs in the freezer is for Migraine headache, puffy eyes, sinus headaches, stress.