The DefenderShield® Blanket Duvet Cover is the perfect protective and machine-washable cover for your Small, Medium, and Large DefenderShield® EMF Protection Anti-Radiation Blanket. While it does not offer any EMF shielding of its own, it fits perfectly over our EMF Protection Blankets to create a soft, silky-smooth cover that can handle stains, the washer and dryer, and normal wear-and-tear. Perfect For: use with our DefenderShield® EMF Protection Blanket. All Features. 100% Cotton. 300 thread count. Luxurious Sateen finish creates a silky smooth surface with a luminous sheen. Designed specifically for our Small, Medium, and Large DefenderShield® EMF Protection Anti-Radiation Blanket. Pesticide free, pigment free, bleach free, and hypoallergenic. Easy zipper closure. Corner ties added for the Medium and Large Duvet Covers. The Blanket Duvet Cover possesses no EMF shielding ability on its own.