[All Silver Fibre Fabric] Radiation protective underwear is made of silver ore, precision woven, high density and high purity. The protective clothing has excellent electromagnetic radiation shielding function with low resistance value. It combines craftsmanship, quality and appearance. [Radiation protective clothing] Highest shielding performance (10MHz-1000MHz). Shielding: LF (Low Frequency Electric Field) HF (High Frequency Electric Field). Protect your baby during pregnancy and early childhood as they are at high risk of radiation. Features Durable, washable, soft, stretchy, lightweight, breathable, foldable, anti-radiation (RF/EMI/EMF/LF shielding), anti-static/ESD, good for health. Do not wash, bleach or dry clean. [Applicable people] Shielding electromagnetic waves generated by computers, printers, copiers, microwave ovens and other electronic devices. Meet the radiation protection needs of people who often face computers and pregnant women.