Made of extremely durable net, used in military products, resistant to any mechanical damage. Perfect for all-year-longuse against dust and insects. Equipped with a system of magnets in zip pockets located along the cervical spine’s part. Their magnetic field dilates blood vessels which speeds up removal of toxins and recovery after exercise. It alsonaturally balances out energy deficits which allows for a faster start of body recovery processes. Significantly reduces pain and swelling.