Billabong swimwear from Australia. I believe it's not sold in Japan. Size is 8 (labeled as S, but it's closer to a Japanese M size). The chest straps can be styled in different ways depending on how you tie them, and the cut at the waist makes you look good! Unused, with tags, but has been handled by someone. Please consider purchasing if you are looking for perfection. (I have inspected it, but there may be overlooked loose threads, etc.)