Microfiber cleaning cloths are preferred by car care enthusiasts for their soft touch absorbency effective cleaning and rapid drying properties. With over 180 000+ fibers per square inch it’s softer than the finest silk yet extremely durable. WeatherTech Microfiber cloths are made of 80% polyester and 20% polyamide (nylon). One strand is 10 times finer then silk and 100 times smaller than a human hair. It is softer finer and more absorbent than any other Microfiber or conventional cloth or fabric available today. Finished rounded corners with a continuous over lock stitch so cloth has no corners to unravel. Great for detailing dusting wiping cleaning. When used as a drying towel they rapidly absorb up to 7-10 times their weight in moisture. So soft in addition to your using on vehicle they can even be used safely on your skin. Machine washer & dryer safe. Can be used over and over again.