Rayon from BAMBOO Sheet Set - Twin Extra Long Solid Ivory 100% bamboo Sheet Set Twin XL Extremely comfortable in all temperatures. Perfect for people with allergies & chemical sensitivity Bamboo is one of the softest fabric in the world, Noticeably softer than cotton. Bamboo is highly resistant to dust mites. Amazingly soft similar to cashmere or silk. Twin Extra Long Size includes 1 flat sheet 70x102+1 fitted sheet 39x80"+1 matching pillowcase 20x30" machine wash.Softness enhansed with each washing