100% cotton cover with a polyester reverse 100% polyester filling luxuriously filled with extra fine fibres which mimic natural feel of down suitable for standard size pillows spot clean only carefully designed to provide the best sleeping experience, this sumptuous dorma pillow protector pair is crafted from crisp 100% cotton with a 230 thread count. The hollowfibre filling provides exceptional added comfort as well as protection to suit all standard size pillows.dormaestablished in 1921, dorma is a british heritage brand synonymous with quality, luxury and impeccable attention to detail. Dorma our name is your guarantee. This collection is verified by oeko tex and independently tested for harmful substances as well as manufactured using sustainable processes under socially responsible working conditions.