When it comes to workplace safety, flame-resistant (FR) coveralls are among the most trusted garments across industries such as oil and gas, electrical utilities, mining, chemical processing, and construction. They protect workers from flash fires, arc flashes, and thermal hazards that could otherwise lead to severe injuries. But while the protective function of FR clothing is universal, the environments in which workers operate are not. From blistering desert oil fields to icy northern drilling rigs and humid coastal refineries, extreme weather adds another layer of complexity to safety and comfort.