Crafted from 100% Egyptian cotton, the natural fibers that make this pillowcase are densely woven into a 300 thread count fabric with a subtle satin stripe. This creates a fabric that is machine washable, hypoallergenic and anti-dust mite that also gets softer with every wash. The natural cotton fibers allow your skin to breathe through the material, absorbing excess moisture and helping you to keep cool in the heat and warm in the cold.