Fabric - 100% 19 momme mulberry silk OEKO-Tex Standard 100 Certification - Proven by the Oeko-Tex certification, which insures that the fabric and filling material was constructed without any use of harmful chemicals. Asthma & Allergy Relief - THXSILK's silk is a natural fiber, and its hypoallergenic quality helps to eliminate allergies and asthma, which could be caused by cotton and other synthetic fibers. Perfect for Hot and Cold Sleepers - Silk's natural temperature-regulating properties
