InteVision 400 Thread Count, 100% Egyptian Cotton Pillowcase; Replacement Cover Designed to Fit the Knee Pillow Made of 400 thread count, 100% Egyptian cotton sateen weave Designed to fit the InteVision Knee Pillow Easy to remove and clean Recommend washing before first use as it will shrink to the correct size for a better fit Every product comes with the trademark InteVision on its packaging.