"GOOD HOUSEKEEPING TRIED AND TESTED: The experts at Good Housekeeping Magazine have labeled our 19 Momme 100% Pure Mulberry Silk Pillowcase a ""Winner"" and ""All-Star Standout"". LUXURIOUS BEDDING: Our pillowcase is made of 100% long strand, Grade 6A Pure Mulberry Silk. The density of silk is measured by momme. The higher the momme, the more silk. Our 30 momme pillowcase has 58% more silk than our 19 momme pillowcase! We have added a unique side entry that is slightly offset. This allows the pillowcase to be used as both a sham or pillowcase. An oversized, envelope flap ensures the pillow will remain securely inside your pillowcase. EASY CARE INSTRUCTIONS: Dry clean or hand wash are the best methods. You can also machine wash on the gentle cycle. We suggest to use a mesh wash bag when do so. Lay flat to dry. VARIETY OF COLORS AND SIZES:We offer a wide range of colors. Choose from: White, Light Blue, Light Green, Silver, English Rose, Deep Lavender, Burgundy, Taupe, Black, Navy or Hunter Green. Our pillowcase comes in Queen and King sizes. We are now offering our White pillowcase in Standard size! Our Queen pillowcase measures 20"" x 30"", Standard measures 20"" x 26"" and King measures 20"" x 36""."