The first immigrants who set foot on the American mainland were almost unarmed, and daily necessities were extremely scarce for them. In the early colonial era, immigrants' clothes were mainly imported from Britain and European countries, and inch by inch was extremely precious. After entering the pioneering era, the so-called upper class in the east coast cities can import clothes from Europe, but the common people in the frontier still have to try their best to solve their own clothing problems. At that time, the intense labor made this kind of cloth very easy to wear, especially in 1849, when miners flocked to California and formed the famous gold rush. In such a life background, durable jeans came into being.

"Jeans", namely jeans, was first recorded in 1567. It is the name of the trousers worn by merchant sailors in the Italian port city of Genoa, that is, "Genoese" or "Gene". The resounding name "Jeans" was officially adopted by Levi's Company only in the 1960s of 19. Before that, it was called "high waist whole" or "Pantaloons".

Levi Strauss is recognized as the inventor of jeans. He used to be a wholesaler of dry goods, dealing in cloth, clothing and grain. Because of his good management, he won a good reputation in the local area. The gray canvas work pants he sells are durable, and look smart and neat after wearing them, which is deeply loved by miners. It is said that Levi's trousers are inspired by the shallow crotch tights worn by Texas shepherd boys. He formally established Levi's Company on 1850. 50 1 jeans produced by Levi's Company are called the originator of jeans.

At the beginning of its birth, jeans were undoubtedly associated with heavy outdoor manual labor in the frontier, and were designed for miners, cowboys, railway workers, loggers and pioneers. In the process of opening up the western frontier, the rapid development of agriculture is accompanied by the increasing prosperity of industry. Despite the rapid growth of urban population, it is said that in the United States of 1880, five-sixths of the population still live in rural areas and dress casually. Jeans are completely used as work clothes, and in view of their superior quality, they are increasingly favored by manual workers. The "golden dream" of getting rich overnight and the cowboy image depicted in Hollywood western movies make jeans full of rich legends.

During the Great Depression of the 1930s, wealthy easterners felt financially unable to go to Europe for a holiday, so the western region became their natural destination. Easterners are not only fascinated by the charming scenery in the midwest, but also fascinated by the story of the legendary cowboy in the west. They like the jeans that cowboys wear, which are heroic and full of local flavor. By the mid-1930s, jeans worn by almost everyone in the agricultural areas in the midwest were first brought to the prosperous cities east of the Mississippi River. Since then, jeans have entered the ranks of popular clothes. 1935, the popular column of American vogue magazine published women's overalls.

World War II became the decisive factor for jeans to become popular all over the world. At that time, the American authorities designated jeans as an important item in wartime, which was once used as the uniform of the American army and went deep into the hinterland of Europe with the allies. After the war, the soldiers returned home, and a large number of accumulated jeans were sold locally in limited quantities. European manufacturers of overalls rushed to imitate the original products of the United States, thus popularizing jeans. In the United States, the war brought women to men's jobs, creating unprecedented opportunities for the popularity of jeans among women. At that time, students also wore jeans as a symbol of solidarity with workers. After the war, everyone wore jeans, which was the most influential dress at that time. Due to the shortage of supply, jeans were once a commodity traded on the black market in the United States, the former Soviet Union and third world countries, which shows their wide spread.

In the 1950s, the rise of film and television communication industry shaped the image of anti-traditional heroes in the eyes of Americans. Cowboy culture has entered the world with the modern people in Hollywood, such as the movies "Unreasonable Resistance" and "Family Dream". In the film, Justine, the protagonist, appeared on the screen in jeans and was praised by public opinion as "the dream lover of girls all over the world". Jeans are also the favorite of Hollywood stars such as Marlon Brando, john wayne, Elvis Presley, Madonna, etc., and they have become the objects that teenagers follow and pursue. The film and television entertainment industry has played an important role in promoting the international fashion trend of jeans.

In the 1960s and 1970s, jeans played an important role in the anti-war, anti-system and anti-tradition movements advocated by the new generation who grew up after World War II, and were once again regarded as representatives of revolutionary and rebellious images. Workers and other laborers still use it as their work and life clothes, and young people such as students and hippies are willing to use it as a relaxed and fashionable daily dress. Discos make jeans the darling of evening dresses. Great changes have taken place in the appearance of jeans during this period. The most obvious feature is that the traditional slim tailoring of trouser legs has evolved into trumpet-shaped, that is, cowboy bell-bottoms with unprecedented width. New technologies such as decoration, fabric, color and finishing emerge one after another, and the popularity of jeans has entered a brand-new era by leaps and bounds.

Later, the appearance of designer jeans brought jeans to the highest level of fashion. The price of jeans is no less than that of high-end women's wear, which is an incredible fantasy for its original producers. After experiencing the fashion climax of 10 years, although designer jeans were popular all over the world in 1980s, the fashion craze of jeans in western countries has actually cooled down, and the established jeans companies such as Levi's have taken measures to reduce the scale and production line. Did it ever flow at this time? Quot Beggars pretend to be in rags. In the mid-1980s, Levi's took the lead in launching a basic publicity campaign, and other established cowboy companies also responded accordingly, which led to a nostalgic trend that lasted until the 1990s. Five bags of classic jeans, red pants and copper buttons instead of zippers have once again become hot items. In China, however, the jeans craze has just begun. The huge population resources and changing clothing concepts have made the professional development of jeans merchants in full swing.

During the Great Depression, jeans often gave people unpleasant associations. The more people wear, the more they feel that the tragic fate of ordinary workers is everywhere. This impression was emphasized in the works of photographers dorothea Langer and Walker Evans at that time, and was made public. Roosevelt's New Deal included providing jeans to the poor, and those who recovered from the economic depression regarded jeans as "uniforms for survivors". Jeans worn by almost everyone during World War II remind us of the glory of thrift, unity and serving our country. No one wants to be regarded as a leisure class for nothing. World War II spread the strong American flavor of jeans to all countries in the world.