These seamless silk pillowcases feature two inches borders with envelope closure and zip openiOur silk is made completely from 100% natural and pure silk produced by the Bombyx Mori silkworms the undisputed best quality silk in the entire world. Lilysilk silk bedding are made with silk floss made from the best quality long stranded Mulberry silk to ensure fluffiness volume and of course heat insulation. Naturally hypoallergenic and thermal adjusting our pillows are suitable regardless of weather and temperature providing you with great comfort and health benefits keeping you sound asleep at night and fully rejuvenated in the morning. Silk bedding is naturally hypoallergenic and is an environment dust mites find inhospitable. Using silk bedding can significantly help reduce the number of dust mites living in bedding. Lilysilk silk beddings silk pillowcases silk flat sheets silk fitted sheets are all made of 100% pure mulberry silk for you skin and hair care. You will feed refreshed when you wake up in the morning. Let 100% mulberry silk bring you good night's sleep all year round.