Made out of high-quality, durable polyethylene. Hypoallergenic lining (foam), removable and self-grip with Velcro. Breathable and anti-sweat. The support posts for the mandible and occipital bone are made of aluminum alloy. Applied with self-adhesive adjustable straps with plastic fasteners. Features a built-in forehead strap for immobilization of the head. The front mandible support system as well as the rear section for support of the occipital bone are both adjustable with a choice of positions. The mandible support can be removed, making it easier for the patient to eat. The brace can also be worn in the supine position. CT and MRI compatible.