100% Polyester Twin measurements: Flat sheet: 66"x96", Fitted sheet: 39"x75"x12", 1 Pillowcase: 20"×30". All around elastic on the 12 inch fitted sheet allows for a snug and secure fit of most mattresses. Super soft and durable polyester microfiber (110 GSM) fabric offers all-season comfort and resists wrinkles and fading. Our 110 grams per square meter fabric provides greater durability and comfort Easy care and durable bedding. Machine wash warm with no bleach and tumble dry low