It's probably safe to say that most of us don't know when to throw the towel in--in the laundry, that is--but with the Expression Dot Towel, we will never have to second-guess the cleanliness of our towels again. Featuring dots that gradually appear as your towel becomes dirtier, this design is an easy-to-read indicator.
Conceived by Sang-Hoon Lee, the Expression Dot Towel is especially helpful for those who use darker towels, which mask dirt easier. Although I'm with Yanko Design in that I'm not sure of the mechanics of this concept, it's definitely a hygienically interesting one.
Spotted Dirty Indicators
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