Sanfly 5G EMF Protection Hat, Anti-Radiation, RF Shielding, WiFi Radiation Unisex Faraday Hat with Blocking

One Size Fits Most: hat circumference 22.83/23.23"/58/59cm, made of elastic fabric, suitable for all head sizes, one size design. 【360° Radiation Shielding】Electromagnetic radiation shielding coating effectively reduces high-frequency radio frequency and millimeter wave radiation, covering the entire interior of the hat. Suitable for: shielding mobile towers, microwave signals, telephones, meters, military transmissions, etc. Anti-static fabric, wireless instrument shielding and electronic textiles reduce electromagnetic radiation (EMP) and electromagnetic interference (EMI). Ideal fabric for electromagnetic radiation protection hat: Outer fabric: 60% cotton, 30% nylon, 10% wool; Lining: 42% silver, 53% cotton. Perfect for: travel, home, office, shopping, outdoor activities and daily wear. Its electromagnetic radiation protection material significantly reduces the risk of exposure to harmful wireless radiation outdoors.