100% Polyester Imported Certified MADE IN GREEN by OEKO-TEX, which means that products are tested for harmful substances and made in safer workplaces with reduced environmental impacts King down-alternative bed comforter or duvet insert offers cozy warmth and all-season versatility Made with 100% polyester filling (300 gsm fill weight) and a white 100% polyester microfiber shell for exceptional softness and strength Machine wash on warm and tumble dry on low (do not iron); comes in a vacuum-sealed pack; please allow 24 hours to decompress Measures 102 by 90 inches; backed by an Amazon Basics 1-year limited warranty