This is worn to correct the skeletal structure and body shape when wearing a kimono. Cotton is placed in the chest area. If you don't have enough cotton, adjust with cosmetic cotton or gauze. (Some people add bandages they no longer use.) The first day of kimono class starts with making this undergarment, and that's how the kimono life begins. It's cheaper than store-bought ones and can be adjusted, so everyone is happy with it. I wear this undergarment over an Airism top with a deep neckline. (The sharp angle of the neckline is in the front.) First, I use a short, band-shaped "sarashi" (a type of cotton cloth) to hold down the chest. Next, I wrap a long "sarashi" around and tuck in the ends. Some wrap it to hold down the chest, others wrap it around the torso. (It's a bit difficult to explain, but it's shown in the photos from the 6th one.) Some people also wrap a face towel when wrapping the torso. Then, I wear an undershirt over the undergarment to keep it from moving. My acquaintance wears the undershirt first, then the undergarment. They say they do this because they wash the undershirt each time. Sometimes, I remove the cotton and wash it. The cotton also thins out over time, so I replace it with new cotton after washing. When shipping, I will mark it so you know which is the front and back.