Dual pile, 100% microfiber (80% Polyester, 20% Polyamide) accumulates and retains dust and dirt mechanically and electrostatically for excellent dusting results. A microfiber yarn’s cross-section reveals a ‘cracked’ star pattern, which collects more dirt particles than natural fibers. During the splitting process, a positive electric ‘static’ charge generates within the fiber. This charge pulls dirt to the microfiber and keeps it within the cracked yarns.