Handmade in North Carolina with certified organic fabric. No harmful chemicals.twin.Soft absorbent and breathable fabric. This mattress topper cover all around zipper can be used for 2 or 3 Inch with latex mattress toppers or memory foam toppers. This organic cotton cover for mattress topper is undyed and unbleached so the color is beige or off-white depending on your room's lightning. These covers for mattress toppers are standard sized so they'll fit any size 2 or 3 toppers.4 oz muslin non slip backing.