In the modern age, when most people are interested in fast fashion, we are harming the environment more than ever. Our consumer habits have changed a lot, in comparison with those of our parents and grandparents. We buy clothes (and other products) very often, use them for a short time and throw them away even though they can still be used. In this way we create piles of waste which is difficult to get rid of. In this project, we would like to draw our students' attention to their consumer habits, their attitude to fast fashion and fashion in general, make them think critically about spending their money and show them that each one of them can contribute to sustainability and environmental protection. Students will collaborate in activities which will help them critically examine their consumer habits and try to change at least some of them. Students will discuss UN Sustainable Development Goals 12 and 17.