Protec Maternity Women's Wear Cell Phone Radiation Fetal Protection T-Shirt Reduces maternal and fetal exposure during pregnancy to cell phone radiation and other electronic device radiation: 360-degrees-around protection of your baby - back, front, and sides Our BOPET technology is similar to materials that NASA uses to shield its astronauts: BOPET is known to reduce many electromagnetic fields by up to 99.99%, and does NOT wash out - ever. Competitors use silver particles, which always wash out, despite their claims otherwise Our products are developed by doctors and scientists: Light, soft, safe, non-toxic, and hypoallergenic Your purchase helps fund our research into pregnancy complications related to cell phone exposure: Patented: United States Patent Number 8,434,169 Cotton/polyester/spandex knit coupled with 100% polyester outer fashionable component: Inner protective embedded electromagnetic radiation (EMR) reducing protection components serve as a lining material (liner) within the polyester outer fashionable component