Silk Works pillowcases are carefully crafted with the highest grade (6a) long fibre, 100% mulberry silk with a thickness of 22 momme to ensure the perfect silky soft combination of durability, quality and shine. Benefits Non-absorbant meaning your expensive products stay right where you want them, on your face and in your hair, not on the pillow Hidden zip closure to keep out dust mites and to prevent any slipping The silky soft surface reduces friction between your head and the pillow preventing hair breakage Temperature regulating keeping you cool on hot summer evenings and warm during the winter months. This enables a deeper and more comfortable night's sleep all year round. All Silk Works pillowcases are delivered to you in a beautiful gift box All Silk Works products are crafted from the highest grade (6A), 22 momme mulberry silk- meaning they’re durable enough for machine washing. By following the care guidance below, you’ll preserve the lustre, softness, and benefits of your silk for years to come. Machine Wash Instructions: Turn pillowcase inside out before washing Wash on a delicate cycle at a maximum temperature of 30°C Use a specialist silk or delicates detergent only Do not use bleach, fabric softener, or tumble dryer Air dry flat or on a laundry rack, away from direct sunlight or heat Iron on low heat only, ideally while slightly damp Silk 100%