Best for the whole family: travel, sleeping, pregnancy protection, working
Material Outer layer: 80% cotton 20% polyester; Inner layer: radiation shielding fabric
Washing Instruction: wash in cold water, use gentle (phosphate-free detergent), don't bleach, don't dry-clean, don't tumble dry, cool iron. If washed according to these directions and kept free of mechanical and chemical stress, the fabric should retains its shielding effectiveness indefinitely.
Note: This product does not shield high frequency radiation like X-Ray.