There are three key sustainable features of a clothing manufacturer: 1. They’re certified 2. You can visit them anytime 3. They’re helping their community The easiest thing is to go through their certifications. The most sustainable manufacturers would have any of the following: • GOTS (Global Organic Textile Standard) • BCI (Better Cotton) • RWS (Responsible Wool Standard) • GRS (Global Recycled Standard) • OEKOTEX100 • Bluesign • ISO 14001:2015 • SA8000 Each of these certificates guarantees that the supplier CAN manufacture clothes sustainably. Whether they do is a thing of inspection. Having said that, a sustainable manufacturer must allow you to visit them with little to no prior notice. That way, you can know whether or not they’re continuing the practices that have earned them their certificates. Additionally, a truly sustainable business would do whatever it can to improve its community. Ask your potential supplier about their community projects.