A light and comfortable fabric can be made for coverall and shirt, mainly used in oil & gas and other industry field. Adopting very welcomed natural fiber cotton fabrics, matched up with Yulong practiced FR craft, self-extinguishing when facing the fire, without molten drop, char length can be controlled within 10cm, soft touching, good strength, good wear resistant property. Formaldehyde content can be controlled within 75ppm which is better environmental protection, prevent human body from hurts. This fabric has good breathability and suitable used in hot and humid conditions. Fabric washing time is more than clothing, it can resist more than 100 times washing.