It's made from PVC foil and is filled with a cool / warm stored gel.For the cold therapy the mask is placed into the freezer.Due to the soft gel the mask fits and adjusts itself to the shape of the face.Therefor the coldness reaches exactly there where it needs to be.Due to the coldness is particularly relieves pains in areas such as the forehead,temples and eyes.For the warm therapy application the mask is placed into either the microwave or heated in water.The migraine mask is simply fastened with a velcro -fixation band easily around the head.
Due to the practicality of the velcro fixation the mask will suit and can be adjusted to most head shapes and does not slip during usage.