Microfiber is a superior, chemical free textile. Made of a revolutionary yarn with microscopic, wedge-shaped polyester filaments, and a polyamide (nylon) core to absorb water and dusts exceptionally quicker than normal material to pick up dust and microparticles like a magnet.The thickness of microfiber is finer than 1/100(0.1-0.3denier) of human hair and has a triangular shaped cross section, Microfiber products can absorb up to around 10 times their weight in water . When you use this item, you’ll be amazed to find out how well it cleans without any aid of cleaner, detergent or soap. USE IT WET OR DRY.