Organic Silk -- We use only pure 22 Momme Mulberry silk, which is an organic fiber with a relatively low carbon footprint, low soil and low land impact. Mulberry leaves trees help to store carbon. Cool to the touch, sensuously smooth and breathable Natural Beauty Therapy -- Dermatologists recommend real silk pillow cases for hair and face health, as it is less scratchy and coarse on sensitive, acne prone skin than cotton or cheap satin materials. Best gift for women preventing morning bed head, dry skin, acne and signs of aging Benefits for Skin -- Prevent sleep wrinkles by providing a slippery surface to slide over instead of tugging and pulling at delicate facial skin Benefits for Hair -- Protect curly hair and keep your hair nice while you sleep, and you don't wake up with crazy split ends or frizz by experiencing less friction Hidden Zipper -- Your pillow won’t slip out the case. Beautifully finished, with interior edges stitched over King Size -- 20 x 36 inches (51 cm x 91 cm), fits most king-sized pillows OEKO-TEX Certified -- Toxic-free, made without harmful substances like formaldehyde, mercury and other heavy metals. It's completely safe and skin-friendly Sleep Set -- Our pillow cases pack with a soft silk scrunchie; Be like the bears in Alaska! Take care of your fur while hibernating