This Malouf MA06TTDRCS has a brilliantly blended bedding the lasting comfort and classic style of cotton is brilliantly blended for a luxurious feel at a modest price. Most cotton blend sheets dilute the cozy feel of cotton by twisting cotton and poly threads prior to weaving. The cotton rich fabric in these sheets have a unique, dual-sided design that preserves the supple feel and vibrant color of cotton. Blended fabric content is 55 percent cotton, 45 percent polyester. Poly fibers are woven across cotton threads to create a soft cotton surface on one side and a wrinkle-resistant poly surface on the opposite side. You only sleep on one side of the sheets, and this method of creating 600 thread count cotton blend bedding results in a cotton feel at incredible value.