1, What is Polyester Microfiber Fabric? Microfiber (or microfibre) is synthetic fiber finer than one denier or decitex / thread, having a diameter of fewer than ten micrometers. … The most common types of microfibers are made from polyesters, polyamides (e.g., nylon, Kevlar, Nomex, trogamide), or conjugation of polyester, polyamide, and polypropylene.   2, The Type of Microfiber Fabric According to …