Enjoy the best of both worlds, Combed cotton comfort blended with the strength and wrinkle free of polyester. This top rated linen was crafted with 70% of long staple Combed cotton & 30% of high strength Microfiber Polyester. Enjoy the extended life span of Combed cotton comfort without wrinkles. Fitted sheets are deep pocket to fit mattresses up to 22 inch deep and are elasticized all the way round to give a snug fit.