Chinese button knot

The Chinese button knot is essentially a knife lanyard knot where the lanyard loop is shortened to a minimum, i.e. tightened to the knot itself. There emerges therefore only two lines next to each other from the knot: the beginning and the end. The knot is commonly used as a button on underwear and night clothes in China, as they are more durable than harder buttons, and more comfortable to rest against.