Shield Apparels Signal Proof Stylish Baseball Cap
Signal Proof Stylish Baseball cap prevents Low & High frequencies from penetrating because the inner layer is equipped with 90% Silver and 10% Spandex while the outer construction is 100% cotton protecting yourself from 5G & wide spectrum of EMF
Shielding silver fabric technical details:
Attenuation: 10MHz~6GHz 40~80dB.
Surface conductivity: <10ohm/inch.
Shielding effectivity: 99%.