This paper investigates the use of design persona that are normally used in UX Design and Service Design in fashion design workshops. In this case, group work by international members at the Super Global Fashion Workshop 2018 and group work done to develop farmer’s work-wear at Agri-art Festival 2018 are cited as examples. A design persona is a fictitious and representative customer set up to help in the development of ideas which give priority to the experience value of customers when its designers develop services and designs of enterprises. I have been using personas since 2013 in workshops applying service design methods and processes to clothing design with Professor Emeritus Marjatta Heikkila Rastas for University of Lapland. This paper is aimed determine the effect of design persona when used in co-creation among workshop members in each group in two workshops carried out in 2018, between persona and other processes in clothing design