1. Rayon Derived from Bamboo 2. Cool & Breathable: Made of rayon derived from bamboo, this temperature-regulating pillowcase set is cooler to the touch and more moisture-wicking than cotton. Ideal for hot sleepers and those looking for a cozy, dry night's sleep without overheating. Recommend to use with air conditioning for an enhanced cooling effect 3. Silk Soft: The premium fabric is silky and light, with a twill weave for extra softness and smoothness.This soft pillowcase set lessens tension on your hair and skin. Enjoy a gentle sleep experience that reduces wrinkles and hair tugging for a truly rejuvenating night's rest 4. Giftable: Featuring a silky hand feel in elegant natural hues, this pillowcase set will elevate the style of your entire room, and is the perfect gift for your loved ones or just to show you care 5. Thoughtful Details: Envelope closure prevents hair entanglement or the pillow from sliding out. The pillow insert can be tucked in for a neater look, or left loose for a more casual look 6. Easy Care: This Standard 100 by OEKO-TEX certified pillowcase set is machine washable for easy maintenance. Machine wash on cold with like colors. Use only non-chlorine bleach if necessary, tumble dry low and cool iron if needed. Please take the product out of the dryer immediately after drying to reduce wrinkles