Thin gray surface pile fabric. Single size with elastic on all four corners (to prevent slipping). Made of soft mesh, it is waterproof and thin, so it dries quickly even after washing, making it very convenient. I used it for about a year to prevent my child from bedwetting. I haven't soiled it much, so there are no stains. There is some fluffing and snagging. Please check the photos. I don't think it will interfere with use. It can also be used for changing baby diapers, preventing milk vomiting, nursing care, and pet care. I think it will be a consumable item, so please consider it! *Please understand that this is a used item. *No individual sales. *It will be folded when shipped, so please understand the creases. *No smokers or pets. #WaterproofSheets #WaterproofMattressPad #BedwettingPrevention #NursingCareSheets #PetSheets #BundleSale #Gray