100% Pure Silk Pillowcases Queen / Standard 19mm (Set of 2, Beige) 100% Silk Imported The finest quality of 100% Pure Mulberry Charmeuse Silk, for a silky soft sleep. High quality stitching and strong 19mm silk that can hold up to machine washing. Pillowcases are a generous 20" x 31" and fit queen sized pillows with ease. Natural silk for a safe and comfortable sleep Classic pillowcase design allows you to use both sides of the pillowcase.