Marks and Spencer (M&S) recently piloted training toolkits for its supplier factories in the UK and Sri Lanka, as part of its Plan A commitment to being a Fair Partner. These toolkits were a result of a collaborative design process between M&S and its factories, led by A Very Good Company (AVGC). The process of co-creation has helped to engage suppliers with M&S’s sustainability agenda, leading to the creation of a product that connects with the needs of M&S, its factory managers and their employees. This collaborative approach to creating behaviour change within a factory environment has transferable learning for brands as they seek to engage consumers with new, more sustainable propositions.