Beautifully soft and luxurious, Martex Baby fitted sheets with Micro-Fresh are made from high quality 100% cotton jersey which continue to look their best, wash after wash. Oeko-Tex Standard 100 Certified. Micro-Fresh technology prevents odour causing bacteria growth and keeps bedding fresher for longer. It is also effective against E.Coli and Staphylococcus aureus. Fully elasticated.