In the Edo period, rokushaku fundoshi were 6 shaku according to a carpenter's square, which totals to about 180 cm, and were often worn by tying it behind the wearer's back, with a maedare hanging down (often folded into a triangle).
江戸時代には曲尺で六尺の長さ（約180cm）で、前垂れを出し（三角に畳む場合も多い）、後で結ぶ場合が多かった。