Jack Wolfskin promises that the acid PFOA will no longer be used in the manufacturing process for its waterproof or water-repellent apparel by the end of 2014. The outdoor brand has been working on technologies to avoid the use of this acid. Jack Wolfskin's move is a voluntary action since the European Union has not yet defined limits for the use of PFOA. This is different from another ingredient, PFOS, for which the EU directive 2006/122/EG foresees a maximum of 1 µg per square meter. There have been discussions about PFOA for a while, but there were technological limits to avoid its use entirely. The company is confident that it will be able to develop new technologies for completely PFOA-free rainwear by the end of 2014.