This can be guessed from the fact that some of the undergarment makers have manufactured and shipped almost the same volume of Ecchu fundoshi since the post war period till now, and what is more, they are keeping considerably large quantity of sales.
一部下着メーカーの越中褌の製造出荷量は、戦後から現在でも一定で、しかも相当数の販売数を保っていることからも推測される。