The ability to apply mathematics in real life plays an important role in modern education. The idea of the project is to strengthen the motivation of students to study mathematics, to find ideas and opportunities to use mathematics in modeling and clothing design, using various STEAM resources. Working in a team on a project, students will learn about the peculiarities of clothing, traditions of partner countries, create their own collections and develop models. For different age categories, children will be offered different responsibilities in the project. The result of the project will be a festival of joint fashion show between partners "STEAM and Fashion", which will feature clothing models made from any available material, and an electronic collection of clothing models, invented by mixed teams of partners.