hand towel; tenugui
A thin, rectangular cotton cloth used for drying hands, wiping, or as a headband; often features traditional patterns.
See also: 手拭き
I wrapped a tenugui around my head at the hot spring.
Please wipe your hands with the hand towel.
I wrapped a tenugui around my head at the festival.
I wiped my sweat with a tenugui.
I wrung out the wet tenugui.