Anti-Radiation Maternity Clothes Top Baby Mom Protection Shield Dresses Imported 25.5% metal (non-lead metal) fiber, 35.1% cotton,39.4% polyester The fabric provides 35dB RF radiation attenuation from 10 MHz to 3 GHz and beyond Wear this dress top to reduce the risks of everyday radiation for your unborn child, it blocks excess RF radiation but not for fully blocking cell phone signals purpose Fashionableable, comfortable and safe on skin Care, hand wash, air dry, do not bleach, do not dry clean