Opti-Cool Headgear soft protective helmets. Helmets available for sports, preventative care, special needs, toddlers, medical helmets and seizures. Made of high quality EVA foam, this cooling helmet is designed to offer optimal protection to reduce the impact of head injury, while being lightweight and comfortable. Opti-Cool Headgear soft protective helmets are molded out of the finest EVA rubber foam available. Made from over 1/2" thick ultra lightweight foam, protection is our number one priority. Each helmet has a ventilated protective core that is covered in Lycra for extra comfort and durability. Opti-Cool Headgear is used for injury prevention, special needs, sports, headaches/migraines, and multiple other uses, which makes for the most versatile helmets available today.