Fossflakes 1991 Superior Pillow Cover: 100% Cotton; Fill: 70% Fossflakes (Polyethylene) & 30% Fossflakes Moonballs (Siliconized Polyester Ball Fiber) Imported Cover: 100Percent cotton; fill: 70Percent Foss flakes (polyethylene) & 30Percent Foss flakes moon balls (Siliconized polyester Ball fiber) Wash at 140F. Tumble dry at Max 140F. Remove from dryer immediately after cycle has Ended. Do not dry clean, bleach or iron. Do not add fabric softener when washing Foss flakes fiber fill Made in Denmark