This buttery soft and smooth flat sheet is kind to skin, and will lull you into a wondrous beauty sleep! Built to last, pure silk at 22 momme will withstand frequent machine washing. Dyed with non-toxic dyes. Designed in Toronto. Material 100% mulberry silk 22 momme (600 thread count) Silk charmeuse Grade 6A (highest grade) Non-toxic dyes OEKO-TEX® 100 certified Benefit of Silk Hydration: less absorbent than cotton, your skin and strands will resist moisture loss Less friction: smooth and supple, feels like a second skin Hypoallergenic: naturally resistant to allergens Gentle hand washing Soak in lukewarm water with mild detergent for no longer than 30 minutes Do not rub or wring the fabric. Gently squeeze the bedding under running water Hang to dry. Avoid sunlight Steam on lowest setting after flipping bedding inside out Machine washing Place in mesh bag Wash on delicate, cold water, low spin setting Remove promptly at the end of wash cycle Hang to dry. Avoid sunlight Steam on the lowest setting after flipping the bedding inside out