Made from 100% Pure 19 Momme Mulberry Charmeuse Silk, Grade 6a and is Oeko-tex Certified. the Pillow Case is Made With Silk on Both Sides and Include a 8 Deep Envelope Closure.HYPOALLERGENIC, SOFT and BREATHABLE: Mulberry Park Silk charmeuse pillowcases are all made of 100% natural Mulberry silk and this momme silk fabric is made of all organic ingredients. Silk fabric is naturally hypoallergenic, resistance to dust mites, mold, fungus and other allergens. Silk helps prevent abrasion of the skin, help retain moisture and beneficial in wrinkle prevention. Dermatologists, Hairstylists and Beauty Experts all recommend silk for people with sensitive skin or acne!SLEEP BETTER, SLEEP BEAUTIFULLY: With our ultra-soft and smooth silk pillowcases, wake up with healthier skin, less tangles, less frizzy hair or bed head — imagine your mornings with smoother and more manageable hair! Mulberry Park Silk fabric is designed to naturally help regulate your body temperature. A Silk fabric pillow cases will feel cooler to your skin in the summer and warmer in the winter and will help you to get a good night’s rest.ENVELOPE PILLOWCASE CLOSURE vs. ZIPPER: Zipper pulls can easily puncture delicate silk fabric or the material can get caught in the zipper teeth and tear. Not to mention, poke you while you sleep. This unique Envelope closures prevents this from happening. The special envelope closure comes with a generous 8 flap at the end of the case allows your pillow to be tucked in and out of sight for a more finished and refined look and feel. No ugly zippers on your silk pillowcases!WHAT YOU WILL RECEIVE: One 100% 19 Momme double-sided Silk pillowcase with an 8 envelope closure (600 thread count). Save 5% when you purchase 2 or more! Order an extra one for when you are laundering, traveling or just want to give one as a gift. Available in Standard (20 x 26), Queen (20 x 30), King (20 x 36) and Travel (13 x 18). All Mulberry Park Silk products are OEKO-TEX Certified (Standard 100) and naturally dyed with no color shading or fading.Mulberry Park Silk was named Best Overall by both Women’s Health and Prevention’s online magazine in its recent ranking of top silk bedding. Additionally, this pillowcase is ranked in Oprah Magazine as one of the Best Silk Pillowcases. As a silk loving company located in Branford, CT, we know nothing is more important than a great night’s sleep! If for any reason your silk pillowcase isn’t right for you, please reach out to us and we will be happy to make it right!