Reduces frizz and prevents tangles and breakage. Sleep&Wellness:Ultra-soft touch,anti-mite and allergy-friendly. Cooling&breathable:Naturally breathable, moisture-wicking, and temperature-regulating. Envelope Closure. Experience ultimate comfort and care with our 100% pure mulberry silk pillowcases. Luxuriously smooth and glossy, they reduce hair frizz, prevent breakage, and keep skin hydrated while minimizing wrinkles. Naturally breathable and moisture-wicking, they ensure a cool, restful sleep. Perfect for everyday use or as a pampering treat for beauty sleep. The envelope closure keeps your pillow secure with a sleek finish.