PERFECT FOR → Travel, Home, Office, Shopping, Outside and Daily Use. powerful wifi emission blocking and anti-radiation fabric. Its anti-EMF material dramatically reduces the exposure to dangerous wireless radiation while outdoors. ULTIMATE PROTECTION FROM WIRELESS EMF RADIATION & 5G → Adult/Large beanie EMF hat has advanced shielding that blocks wireless EMF radiation, 5G, WiFi, Bluetooth. PEACE OF MIND → Adult/Large EMF beanie hat gives you peace of mind that you are reducing your daily exposure to EMF emissions from your mobile devices and in your environment. ADJUSTABLE FOR THE PERFECT FIT → EMF Adult/Large Beanie measures 22.83inch/58cm in circumference. Best for Adults. Fold the bottom over or under to get a perfect fit. EVERYDAY EMF PROTECTION → Soft, comfortable, lightweight, and stretchy adult faraday beanie cap - Made with cotton, Nylon fabric blend.