This duvet cover is a polyester blend which keeps it smooth and unwrinkled. The cute design is something else for the "pro" list, as well as the softness of the material. For the "con" list is that mine came with a stain on one of the shams that did not come out in the wash. Also, I ordered the "beige" and the underside of the duvet is dark BROWN. It looked much lighter from the pictures, which I would have preferred.