When looking at the name and the description, it seems that these are being presented as 100%, but they are a cotton/poly blend. This is not what I wanted because polyester is generally lower quality. It should really say in the description that it is a blend. Depending on how the polyester is blended with the cotton at the yarn stage, the product can pill — polyester is known for pilling. And, poly/cotton sheets are also not as breathable as cotton sheets.