Not too long ago, I read how the "big clothes" fashion movement of the 1980s and early 1990s was due to Baby Boomers putting on weight as they entered their 30s and 40s -- their buying power was still greater than the next generation (Xers). The tighter styles didn't emerge until the Millennials had their own buying power around 2000. History appears to be repeating itself. Millennials are now in their 30s and 40s and fashion is getting a little looser again. https://www.cnn.com/2021/01/28/business/levi-baggy-jeans/index.html