1. Superior Microfiber sets 2. Microfiber: 80/20 composition 3.180-380GSM 4. Super abosrbent, quick-dry, soft Microfiber is a next generation fiber that is called an ultra fine filament developed by a great new science of the 21st century. It is polyester of state-of-the-art technology made as fine as 1/100 of our human hair. They are made entirely of natural materials, no artificial fibers of any kind are used in the weaving or sewing of this amazing product. Microfiber towels are super soft, super absorbent, will absorb many tomes it's own weight in water.