Shield Apparels Signal Proof Five Panel Cap
Shield Apparels Signal Proof Five Panel cap is designed for all adult ages exclusively constructed with high quality of cotton which ease your comfort and its the world first cap which provides high and low frequencies protection because of inner layer contains 90% Silver & 10% Spandex.
Shielding silver fabric technical details:
Attenuation: 10MHz~6GHz 40~80dB.
Surface conductivity: <10ohm/inch.
Shielding effectivity: 99%