WHAT IT IS The beauty secret of celebrity hairstylists, dermatologists, and beauty experts. Slip is the #1 preferred brand of silk pillowcases by dermatologists for their patients, themselves, and their families* Includes one pillowcase. Imported. WHAT IT DOES This pillowcase was made using slipsilk, developed and refined for over ten years to provide the ultimate combination of shine, thickness, softness, and durability. In laboratory testing, it was shown to absorb significantly less face cream than other cotton versions* while retaining the skin's moisture and preventing the transference of valuable face and hair products where they belong, on the face and hair. Slipsilk was also shown to create less friction* than regular pillowcases, which can reduce stretching and tugging on delicate facial skin. RESEARCH RESULTS Slip is the #1 preferred brand of silk pillowcases by dermatologists for their patients, themselves and their families* *In a survey of dermatologists in the United States conducted between 1-12 November 2021.In laboratory testing, slipsilk has been shown to reduce friction by 43% on average. *On average compared to cotton pillowcases with a 220-360 thread count. *In a survey of dermatologists in the United States conducted between 1-12 November 2021. KEY BENEFITS Anti-Sleep Crease, Anti-Bed Head INGREDIENTS Made from 100% highest grade (6A) long fiber mulberry silk with a thickness of 22 momme. CARE INSTRUCTIONS Hand wash 30C (86F) Machine wash 30C (86F) (Delicates wash bag recommended) Use a pH neutral liquid detergent Line dry in shade Iron or steam on a low heat Dry clean (No trichloroethylene) Do not bleach Do not tumble dry. Cosmetics - Beauty Accents > Slip > Saks Fifth Avenue > Barneys. slip. Color: Navy. Size: Queen.