Why are some of the clothes that were popular in the 1990s now popular again?

It's a normal phenomenon that popular clothing from the 1990s is back in fashion today, and fashion is always a kind of reincarnation. No matter which era to look at the previous things will always have a certain audience will like, when some people or designers think that some of the previous fashionable clothing now in some people wear up quite good, there will naturally be a part of the people to follow the trend, and then it will become a modern popular items.