This is a nylon jacket from Nishimatsuya. It's navy and blue, a two-tone design. Size 80. The fabric is a bit "swishy" and very practical. It's useful from spring to autumn. It's also great for when you get a little chilly from air conditioning in the summer, and it's water-resistant and light, so it's easy to carry around. It has some signs of wear, but I don't think there are any noticeable stains.