These sheets and sheet sets are made of extra heavy European quality jersey with elastomer for a perfect fit. It feels nice and soft against the skin and has a great absorption capacity and thermal insulation. The fitted sheet is made from 95% combed cotton and 5% elastane. These sheets are smooth and ironing is unnecessary. A fitted jersey provides a lot of comfort to your bed, thanks to the perfect fit with your topper mattresses. The sheets are pill-free, 100% colorfast and have excellent breathability and moisture management.