LilySilk 22 Momme Seamless 100% Mulberry Silk Flat Sheet, Soft Green, Full 100% Silk Imported Certification:Oeko-Tex Standard 100 SHHO 094943 Fabric:100% 22 Momme pure and natural long stranded Mulberry silk Machine-washable in lukewarm water (30DegreeC) on most gentle cycle available