LS52 Features: -Pillow.-Filling: PLA fiber - plant-based fiber that does not off-gas harmful chemicals.-Surface: 100pct Organic cotton fabric.-Maintains resiliency through repeated washings.-550 Thread count weave that's impenetrable by dust mites and other allergens.-Fabric has a mean flow pore diameter of 3.5 microns as compared with the size of a dust mite - 10 microns.-Machine wash and dry. Warranty: -1 Year limited warranty.