Heat- and fire-resistant chaps and gaiters protect workers from sparks, flames and high heat. They are worn over regular or fire-retardant pants and are tied together at the back of the worker's legs. This protects the front and sides of the legs during welding applications. Heat- and fire-resistant chaps are made of leather, CarbonX and Nomex as well as aluminized Kevlar and Zetex. Aluminized materials provide greater protection from high temperatures, while CarbonX and Nomex provide greater protection against fire.