The idea is to distribute T-Shirts with a built in sun alert. This alert is triggered as soon as the T-Shirt is expensed to UV rays. Thereby the persons wearing the T-Shirts and the people around them are alerted - early enough, and in a surprising manner.

The promotion attracted attention and was not only a topic for conversation, but also gave opportunity for some flirting. The T-Shirts were very popular at open air festivals and out of stock in the shortest amount of time.