Please select two colors of your choice. These popular silk belly bands are available in limited quantities this time. These are slightly imperfect, made in Japan by a long-established underwear shop. They are almost indistinguishable from first-quality items. They retail for around 2000 yen each in stores. The part that touches the skin is 100% silk, and the outer layer is cotton. They are also made with polyurethane for stretch. Suitable for those with sensitive skin. Despite being silk, they are thin and warm, and won't show under your outerwear. Flat measurement: 30 cm long, 25 cm wide. Comfortable to wear while sleeping.