Hamamatsu Chusen dyeing, a traditional yukata-making technique from Hamamatsu, Shizuoka Prefecture, began in the Taisho era and grew after the 1923 Great Kanto Earthquake, when artisans relocated from Tokyo and Osaka. Originating from 1880s tenugui cloth dyeing, it uses a medium-sized stencil to pour dye evenly through the fabric, coloring both sides with identical intensity. This creates reversible, breathable cloth with soft color gradations from natural dye bleeding. Once featuring simple indigo-and-white patterns, designs have expanded to include multi-color and discharge dyeing. Still crafted by hand, chusen fabrics are washed in fresh water, sun-dried, and remain soft and gentle on the skin. The method is used not only for yukata but also for happi coats, noren, flags, and tenugui.