Material: 100% polyester (stretch) String: Silk rayon Size: Width 14cm, Length 20cm, String length 120cm *Please note that the string length is shorter compared to other products. A fundoshi (traditional Japanese undergarment) featuring optical dots. Made with stretch functional material. The string is made of glossy silk rayon satin. Rich image. *Please refrain from purchasing if you are a perfectionist, as this is handmade.