The 1920's was quite strongly affected in the sense of fashion due to the 'world war one' which had a huge impact on Britain and it wasn't until the 1930's in which this became important to people again. After world war one though the restrictive corseting and big layers left the mainstream of fashion women still carried clutches featuring in different geometric motifs which were usually carried casually under their arms. In the early 1920's things had died down a bit with the whole 'impressing' people statements and money because, of the after effect of the war.
The main thing that had changed during this time was that women were not concerned about their bags matching their outfits. It was no longer a bit deal and they didn't feel the need to co-ordinate their bags to match their outfits. As well as this the discovery of King Tutankhamens Tomb in 1923 led to the Egyptian inspired art on the purses.
However in the 1930's things all soon turned around the shoulder bag, the clasp bag and the clutch all hit the mainstream fashion. This was the first time in which this had ever happened and this was the biggest they had ever been. It was partly due to the rise of art deco which made it firstly in interior but then influenced fashion on a high level creating new exciting things for the mainstream.
With art deco hitting both the lifestyle and fashion mainstream it increased the creativity used within the production and designs on clothes aswell as accessories A lot more bags and purses were of different shaped and were no longer square. The different materials they started to use such as plastics, beading and zippers to create more of a statement a long with the lifestyle they were living, and the lifestyle that everyone at that time wanted to be living. It was a huge movement which affected a lot of stuff in all aspects and created a whole new style to develop on over the next few years.