"LIGHT BLOCKING - The curtains block 85-99% of sunlight and UV rays (the dark colour lends itself well) for maximum privacy and undisturbed sleep thanks to innovative triple weave technology. Fabric Material - DONREN curtains are made of polyester blackout fabric, which is soft to the touch and smooth. MATCHES WITH VALANCE AND SHELVES - In DONREN store there are valances and shelves of the same color (12""/15""/18""/24""/30""/36"" long) to pair with blackout curtains. Care Instructions: The finish will withstand years of use. Machine wash in cold water. Use only non-chlorine bleach and warm iron when needed."