Electromagnetic fields! We're soaking in it!
Everyone basically knows that EMF causes birth defects and/or cancer and/or tumors or something, especially the heightened EMF that thoughtless pregnant women with cell phones and electricity and BabyPlus prenatal education systems expose their defenseless fetuses to all day and night.
Which is why some leading physicians and obstetricians from both Europe and Galveston, TX have created Protec Maternity Wear, the first maternity fashion with a built-in EMF protection.
These gorgeous garments come in blouse and tank top models, and all have a built-in lining of sheer, EMF resistant fabric. The Protec folks don't say exactly what EMF fabric they use, or what percentage of ohms or whatever get reduced, but I'm sure it's one of the highest-performance fabric options listed for sale at the EMF Shielding Superstore.