Silk Works pure silk eye masks are carefully crafted from the highest grade (6a) Mulberry Silk with 22 momme thickness, 100% silk fibre filling and an elastic silk covered band. The smooth silk fibres naturally hydrate the skin around the delicate eye area whilst blocking out the light for a deeper, uninterrupted night's sleep. Naturally hypoallergenic being the perfect choice for sensitive or allergy prone skin. All Silk Works Eye Masks come packaged 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: 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%