Future Nomex fabrics should be more comfortable to wear, with better breathability, but DuPont's main focus is on reducing weight. "For example, Nomex fabric in workwear might have a density of ...

Kevlar and Nomex are both heat-resistant fibers. Kevlar is a synthetic, light-weight fiber that is used to produce body armor, coatings, cables, and mining protective equipment, among other things.

DuPont de Nemours Inc. is considering a sale of two heat-resistant fiber brands as the chemical manufacturer undergoes a broader overhaul, people with knowledge of the matter said.