OctoRose 100% Pure Finest Grade Mulberry Silk Filled Pillow 1000g/filling for All Season (2pc-silkpillow-(20x30)) Hypo-allergenic, great for all skin types Lightest natural fiber, soft and fluffy, deliver a healthy and comfortable sleep Finest mulberry silk filled pillow 20x30" with 100% cotton inner shell protector. The outer shell Pillow case is 100% cotton 300 thread count. (please tell us which color you do need when you place order.) Easy machine wash.