Why do I think Japanese kimonos are like loungewear?

Kimono is a traditional Japanese clothing, just like the costumes worn by people in ancient China. Of course, there are home clothes to wear at home and formal clothes to wear when going out.

There are also many kinds of kimono materials, which vary according to the season and occasion.

For example, most clothes in summer are made of cotton and linen. The yukata mentioned above can be simplified to only wear a single layer (generally speaking, at least one underwear called underwear must be worn under a kimono), including a matching belt.

It also has a narrow band, so it can be worn casually and casually as home wear.

If you see that they are only wearing a white singlet and the belt is not formally knotted, then 80% of the people are just wearing underwear under the kimono. That is not a formal kimono, it is just a part of the kimono.