Recently, there are some people wearing JINBEI for summer festival, fireworks show not only for home wear.
It's easy to put on than YUKATA (浴衣) and mobility is much better too. Composition of JINBEI is tops & shorts. No obi (belt), you just tie with the string attached on.
JINBEI is coming more fashionable today but don't forget the basic purpose is home wear!
Anyway, JINBEI is cool clothes!!
You can buy it direct from Japan here under through Rakauten Global and amazon.co.jp. If you have an interest to buy, refer "How to use Rakuten Global" or "How to buy on amazon.co.jp " But maybe you don't need to, because it's easy.