urgarding emf shielding double layers zip hoodie with u-silver radiation-shielding fabric 1019, Black

size chart describe the product sizes, including different skus’ different sizes. features & specifications wave ser material: 42% silver fiber 53% cotton 5% polyester showcase the model and product we provide s/m size washing instructions detailed washing instructions. for examples, washing with temperature not above 30, do not use bleach, hang dry, do not iron, do not dry clean, etc. test report test it at 40ghz,one layer is 28.8db and 2 layers is 53db