Pure Silk Pillowcase, 100% Mulberry Silk, Oeko-TEX Certified, Envelope Style Closure Hides Pillow, Prevents Sleep Wrinkles, Protects Hair, Standard Size (20 by 26 inch) - Ivory 100% Pure Silk Made with 100% Pure Mulberry Long Strand Silk, 19 momme (600 Thread Count) Package Includes One Standard Size (20 x 26 / 51 x 66cm) Ivory Pillow Case. Envelope Style Closure with Generous 8" Flap To Hide Pillow. Luxury Pillow Case Made Entirely With 100% Pure Mulberry Long Strand Silk, 19 momme (600 Thread Count). Silk Fabric is Naturally Hypoallergenic. Resistant to Mites and Mold. OEKO-TEX Certified (Standard 100) to be free of chemicals and naturally dyed with no color shading or fading. CARE INSTRUCTIONS: Hand or Machine Wash in Cold Water on Gentle Cycle. Hang to Dry. Cool Iron. Do Not Bleach. Can Also Be Dry Cleaned. **PLEASE NOTE: FLandB | Fine Linen and Bath is the ONLY authorized retailer of Mulberry Park Silks products. Items sold by any other retailer are not authentic Mulberry Park Silk products.