When we talk about sustainability in EAP, we need to consider not only how we can raise related issues with students but also how EAP practitioners, as a professional community, can implement sustainable practices. This can impact the kinds of materials we develop, and what we do with them once they exist, to ensure we move away from single use/single class materials. Materials should be flexible, adaptable and multipurpose. In this talk we reflect on our experience of developing and releasing an award-winning EAP course we believe achieves that. Develop EAP: A Sustainable Academic Skills Course was designed in 2016 with flexibility in mind. It is based on the UN’s Sustainable Development Goals (SDGs), a rich resource which can be revisited with different cohorts of students, and which can engage them emotionally, intellectually and academically. The design and flexibility of the course contribute to its sustainability as it is easy to update so the content retains currency. Once we had developed the course for one EAP English Medium Education setting in Asia, we recognised its potential utility in other teaching contexts. Rather than pursuing commercial publication, we elected to make the course available for free download in 2018. Sharing materials electronically with fellow EAP practitioners is not only environmentally friendly, but also socially just in a world where educational resources are unequally distributed.