Considering that the future war will be more severe, chemical and biological nuclear weapons will be used in actual combat, the accuracy and intelligence monitoring ability of firearms will be greatly improved, and casualties will be higher than ever before. Therefore, all countries have developed and equipped new combat uniforms. The us military has also been equipped with new combat uniforms since the 1980 s. The camouflage effect of the new training uniform has been obviously improved. On the battlefield, the naked eye observation distance is 50-250 meters, and it is difficult to find the colors used in the new training clothes within such a distance. The dye of the cloth also has the camouflage effect of preventing infrared rays. The fabric is a blend of nylon and cotton, weighing about 254 grams per square meter, which is quite light.