What is half cotton and half polyester called?

A fabric that is half cotton and half polyester is commonly referred to as a "cotton-polyester blend" or simply a "cotton-poly blend." This combination combines the softness and breathability of cotton with the durability and wrinkle-resistance of polyester, making it a popular choice for clothing and home textiles. This blend often offers the benefits of both fibers while minimizing the drawbacks of each.