Microfibers are densely constructed polyester and polyamide nylon fibers that are approximately 116th the thickness of a human hair when woven together these fibers create a net like surface area covered with millions of spaces to trap moisture dirt and debris the micro fibers are able to get into tiny nooks and crevices whereas the traditional cotton cloth and mop fibers are not the nylon component of the fiber also produces a static charge that attracts dirt pulling it in and trapping