Also known as the Gatsby Era, the most renown look for men’s of the 1920s was the daily business suit. Following the cultural changes of post-war conflict, western male clothing underwent a radical transformation. In contrast to the formal long broad-shouldered look of their Edwardian predecessors, 1920s suits opted for slimmer jackets with sloping shoulders, notch lapels and welt pockets, as well as dress shirts with club collars and wide legged trousers. Suits had become an essential part of every man 's wardrobe in the 1920s. Upper-class men owned suits of every style, colour and material. Blue collar workers wore suits in a more casual and boyish style. What set this decade 's suits apart from other decades was that they were mate with