Hi there, thanks for your question! The inner liner (the part closest to your head) is the made of silver fabric which blocks the radiation from hitting your skull. The outer fabric is not protective, it's like a regular beanie so nobody knows you're wearing an EMF protection beanie. It would be unnecessary to make the outside EMF shielding, plus it would drive up the price that we would have to charge a lot because the EMF shielding fabric is really expensive. Hope this answers your question~!