EMF and 5G proof beanie hat, acrylic wool hat with 100% silver lining to shield against EMF up to 40GHz, which includes 5G frequencies.

Shields frequencies between 30MHz and 40GHz at average of 74dB. This is highly protective material and performs well.

The beanies are comfortable and stretchy.  One size fits all.

Available in black or grey as photographed

Knitted Winter Beanie EMF & 5G proof