Jersey City has safety clothing and equipment available for sale. Personal protection can be for various exigencies, such as injury, heat, chemicals, and infection, for job-related occupational safety and health purposes, along with some combat sports. Each of these have specific clothes and supplies manufactured for protection. These are made of special, heat/fire/electrical shock/chemical-resistant material, often a mixture of polymers. They are manufactured by a number of companies, one or more of which are available in Jersey City. These are used by emergency and rescue workers, firefighters, police personnel etc. Usage of such clothing reduces the impact or force of the hazard, keeping the wearer relatively safe.