For this study, jackets and other clothing sold as water- or stain-resistant were purchased from 13 countries in Asia, Africa, Europe and North America. Most of the jackets tested were marketed for children. Countries included were Germany, Czech Republic, Netherlands, Poland, United Kingdom, Serbia, Montenegro, Kenya, Bangladesh, India, Sri Lanka, Thailand, and the U.S. This study demonstrates that the current process of regulating thousands of PFAS one-by-one or in small groups is not sufficient to control these harmful substances. Only a universal, class-based approach -including polymeric PFAS- resulting in a global ban of PFAS as a group can stop environmental releases of and human exposure to PFAS.