Flame Retardant finish on 100% cotton fabric. These safety coveralls are designed to provide protection against accidental flash fires, sparks during welding operations, heat and even large splashes of molten metal. The Cotton Flame Retardant Coveralls ensures durability and long service life that can endure challenging conditions. The reflective tape around the sleeves & legs is also flame retardant, making the coverall you can work safely and securely in.