PIP™ understands the importance of reducing waste to lower costs and minimize environmental impact New, sustainable ECOSeries™ BioSoft™ ear plugs are made from bio-based technologies BioSoft™ ear plug foam material provides the same fit and performance as conventional polyurethane or PVC materials, but with a lower carbon footprint Innovative technology not only reduces emissions during manufacturing, but contains bio-based materials, making BioSoft™ more environmentally friendly at end of use