Our pillow protector is crafted by quilting together three layers of cotton: a top layer of pure, medium-weight cotton that’s tightly woven for strength while still allowing airflow, a middle layer of thick cotton padding for added cushioning, and a bottom layer of the same medium-weight cotton. The padding is intentionally overcut to account for shrinkage, which enhances its cushioning effect, and we finish by adding a zipper to fully encase your pillow. This triple cotton protector is absorbent, breathable, and lightly cushioned for superior comfort. It’s also easy to care for—just machine wash and dry at home. Experience the comfort of sleeping on cotton today! 100% Cotton Zipper Closure