Well perhaps invent is the wrong word, because the bra has existed in various shapes and sizes for many years already. Japan, with it’s rich history and very respected culture, has really extended a hand of friendship to cross-dressers all over the world. This is very touching indeed. If anything is going to lend cross-dressing some much needed street cred, it is the adoption of the bro by Japanese main stream culture.
Normally the Japanese are very quick to adopt new tech toys and cool gadgets, but it just goes to show that they have fashion sense and love practical things too. Looks like our model here could really use the support.

