Opti-Cool Headgear© EVA foam cooling helmet is designed to offer optimal protection to reduce the impact of head injury, while being lightweight and comfortable. These soft Protective Helmets have been used for Autism, Epilepsy & Seizures as a great protection for the head. 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.