This is a hickory stripe work cap I bought years ago at a vintage clothing store in Osaka. The exact age is unknown, but I believe it's made with fabric that's quite old. The size is small, around 54cm. There is some fading and yellowing on the part that touches the forehead. The brim has a core, but it has a slightly wavy feel, possibly due to the fabric shrinking. The actual color is a slightly faded blue. Color: Blue系 (Blue-based)