The microfiber fitted sheets from the etérea Comfort Series are made from 100% polyester. They feature a strong all-around elastic and fit perfectly and wrinkle-free on your mattress due to their optimal cut. The high-quality fine polyester yarn gives the fitted sheet a soft and skin-friendly surface. This microfiber fitted sheet provides you with a pleasant and restful sleep. The fitted sheets are sanforized, offering additional protection against shrinking and sagging. All etérea fitted sheets are colorfast and produced gently, and they can be machine washed and dried.