[Natural Silk Material] J Jimoo Silk Pillowcase is Made from Highest Grade 6a 100% Pure Mulberry Silk, Both Sides 19 Monme and 600 Thread Count. Sgs 100% Silk Certified. This Material is Breathable, Delicate, Cool, Skin-friendly and Comfortable. Sleeping on Our Silk Pillow Case is Like Sleeping on a Cloud![SKIN BENEFITS] Silk contains 18 amino acids which nourish your skin while you sleep?? your face will be better hydrated and smooth. Anti sleep crease : Our silk is ultra-soft, smooth and gentle to reduce friction by 43% on average, allowing skin to glide along the pillow, which can reduce pressure on creased skin and prevents wrinkles.[HAIR BENEFITS] Ordinary pillow cases can cause hair tangling during the night. The natural smoothness of silk prevents static electricity and reduces friction, preventing dry/knotted hair and reduce hair loss. The luxurious fabric can help keep your hair soft, moisturised, and tangle free so that reduces frizz and split ends.[HIGH QUALITY SLEEP] Pure mulberry silk is a natural temperature regulator which is skin-friendly and moisture to help feel cool in summer and warm in winter. Silk retained a comfortable temperature & aided in falling asleep more relaxed. We spend one third time of our lives in bed, how important a quality and beautiful sleep is![HIDDEN ZIPPER DESIGN] Hidden zipper for style, comfort and better fit; The great design keeps these mulberry silk pillowcases in good shape all overnight and makes them durable. Coexistence of beauty and practicality.[GREAT GIFT CHOICE]??Silk is a symbol of love and noble, elegance. A luxurious present for your loved ones. Perfect for a graduation, wedding, housewarming, or Valentine.?[SATISFACTION GUARANTEE] Our aim is 100% customer satisfaction??We put a great effort to provide the best quality silk bed pillow cover for every family. Products are 90 days money back/replacement and 2 years warranty guarantee.