Invented by Dupont, which markets it under the name KEVLARTM, aramid is a poly para-phenyleneterephthalamide, and is more properly known as a para-aramid. Belonging to the family of nylons, aramids are chemically and thermally stable, strong, lightweight, and resistant to impact and abrasion damage. Aramids also are dielectrics, or non-conductors of electric current. Uses for aramid include protective equipment (e.g., body armor such as bulletproof vests and helmets), fire-blocking fabrics, tire reinforcements, high-performance composites for aircraft, and strength members for telecommunications cables. See also KEVLARTM and strength member.