As a significant part of childhood material culture, children's clothes contribute to shaping their social identity and gender, as well as to developing and supporting their interactions with their environment related to their age. The focus on children's education and well-being is essential. Their voices should be emphasised in the interest of promoting an inclusive future in both research on children’s material culture and in practice. However, despite the daily nature of children’s interaction with clothing, their relationship with clothes is ignored and methods to support an analysis of it are lacking. An investigation of children’s clothing behaviour is needed to better understand children's agency, to influence industry experts and to encourage policy makers to engage more sustainably with children’s fashion. IN2FROCC (Interdisciplinary and International Network for Research on Children and Clothing) is comprised of historians, anthropologists, sociologists, ethnologists, museum curators, childhood practitioners, designers, industry representatives and children united in an investigation into children's clothes around the globe, historically and in social ecosystems. This network seeks to engage in an innovative, inclusive and organic manner with current research on children’s dress codes, fashion and clothes to establish a deeper understanding of children’s clothing interactions. This chapter will present the initial reflections and actions of this network, creating impactful methods for participative children’s clothing culture and design.