My wife wore the same Converse shoes for 11 years. She just got herself a new pair. They are the exact same model, but you would never have guessed. : r/Wellworn
Converse x HAVEN Chuck Taylor 1970s Hi (Goretex) $59 + shipping : r/frugalmalefashion
New Insights into Perfluorinated Sulfonic-Acid Ionomers | Chemical Reviews