100% Polyester ELEVATE YOUR SLEEP - Upgrade your sleeping experience with the Calvin Klein Charcoal Knit King Bed Pillows, measuring 20" x 36" PLUSH KNIT - Crafted with a woven double knit ionized copper polyester shell, this pillow features a soft knit design that adds a touch of plushness to your bedding space IDEAL SUPPORT - These soft/medium density pillows are ideal for stomach sleepers, providing the support you need for a better night’s rest ULTIMATE LUXURY - Add a touch of luxury to your bedding with the perfect combination of comfort, style, and quality that Calvin Klein is renowned for CONVENIENT CARE - Machine wash pillows separately in a cold, gentle cycle. Run spin cycle twice for maximum water extraction. Tumble dry low heat with clean tennis balls. Remove bed pillows promptly and fluff after drying. Do not iron