This FR garment is made of 88% cotton and 12% nylon fabric, which is durable and comfortable. This flame retardant clothing has excellent flame retardation. When workers approach the hot construction site, they will have a good heat insulation effect, which can isolate the workers from heat and reduce injuries; there is a high visibility of reflection on all clothes The belt can improve the visibility of the workers, ensure the safety of the workers when the weather is dim, such as rainy weather, and when the workers are in danger, they can immediately find the workers to avoid the workers being hurt too much. Due to the protective clothing made of flame-resistant knitted fabric, it is non-toxic, has no color, and has no irritation to workers' bodies. In addition, this flame retardant coverall is light in weight, soft in hand and good in hygroscopicity. When workers are working, they will not feel uncomfortable because of wet clothes, nor will they be inefficient due to the restraints of clothes.