From Naturepedic, this protector pad features: Fitted The Naturepedic Organic Cotton Waterproof Protector Pad is made with soft organic cotton jersey fabric with an ultra-thin waterproof barrier in the center for an absorptive and comfortable sleep environment. Soft organic cotton jersey surface / waterproof barrier No harmful chemicals and no flame retardants No toxic chemical odors/smells DrySleep™ Technology, which blocks liquids from passing through while allowing water vapor to escape Softness: The organic cotton jersey fabric provides a soft, stretchy layer that still allows you to enjoy your mattress Silence: Unlike other protectors, our waterproof mattress protector minimizes crinkling noise Coolness: The unique design allows water vapor to escape, keeping you cooler while you sleep Machine washable GOTS Certified GREENGUARD Gold Certified Made Safe Certified No vinyl, phthalates, polyurethane foam, flame retardant chemicals or barriers, formaldehyde, pesticides, GMO's, glues/adhesives, etc. Crib fitted - 28" x 52" x 6" Top & bottom fabric: GOTS certified organic cotton jersey Waterproofing: TPU polyurethane barrier Imported.