the 6FIFTYTWO® dream silk pillowcase in navy blue is designed to elevate everyday beauty and sleep routines through refined craftsmanship and performance-driven materials. crafted in an envelope style from 22 momme, 100% pure mulberry silk, this luxury silk pillowcase is backed by science and clinically proven to improve skin hydration and texture, reduce fine lines and sleep creases, and help minimize overnight acne breakouts. naturally anti-static and exceptionally smooth, the dream silk pillowcase supports softer, silkier hair while offering a timeless, elegant finish for any bedroom. to keep your 6FIFTYTWO® silk products looking and feeling luxurious, follow these care instructions: 1. use a ph-neutral liquid detergent: choose a gentle detergent designed for delicate fabrics to avoid damaging the silk fibers. 2. use a mesh laundry bag: always place your silk items in a mesh laundry bag to protect them during washing, reducing friction and keeping the silk fibers intact. 3. machine wash on delicate: wash your silk at 30°c (86°f) on a delicate cycle to preserve the fabric's softness and quality. 4. do not bleach: avoid using bleach or harsh chemicals, as they can damage the silk fibers. 5. do not tumble dry: air dry your silk flat in the shade, as tumble drying can cause shrinkage and weaken the fabric. 6. iron on low heat: if ironing is necessary, use a low heat setting, either steam or dry. always place a cloth between the iron and the silk for protection. 7. dry clean: dry cleaning is safe for silk, but ensure that no trichloroethylene is used, as it can harm the fabric. Silk 100%