Tenugui is a rectangular cotton cloth used mainly as a towel or headcover. In Japan it was one of the most common household items up until a few decades ago when terry cloth towel became popular.
Although everyday use of tenugui dropped significantly, recently a new type of tenugui, doule-faced gauze tenugui has been popular among young women. It features different fancy patterns on each side and has a high water absorption ability.
Today I had one around my neck when I played tennis with my friends. (Too hot and humid to play tennis) It protected my neck from the strong sunlight and absorbed sweat very well.
I'm a fan of this new type of Japanese tenugui. Wittily practical!