This soft, hypoallergenic cover with bamboo fibers protects your mattress from fluids, stains, allergens, dust mites, and more. Protects your mattress from fluids, stains, allergens, dust mites, bacteria, and more. Elasticized skirt provides secure fit on mattresses up to 21” thick. Made from soft and hypoallergenic fabric. Materials: 240GSM bamboo and polyester blend.