What Makes Nike Air Sustainable?
March 25, 2019
When Nike and Frank Rudy initially partnered on Air, they chose two gasses to keep the units inflated: hexafluoroethane (Freon 116) and sulfur hexafluoride (SF6). Both large-molecule gasses are stable and nonflammable, making them well-suited for the job.
Back then there were no regulations forcing companies to reduce greenhouse gasses, but once Nike knew it was contributing to global warming, it resolved to change. The Swoosh set a goal to completely phase out SF6 usage by 2000.
This was no small feat. Air defined Nike, and SF6 made Air possible. To create a more climate-friendly Air-Sole meant changing almost every Nike process and product in some way — everything saves the sensation and performance of Air, of course.
In addition to dramatically reducing its carbon footprint, shifting from SF6 to nitrogen encouraged Nike engineers and designers to imagine new shapes and sensations of Air. This fueled a major leap in designs — the Air Max 360, for example, was Nike’s first sneaker to cushion the entire sole with a bed of Air — that sparked the excitement for Nike Air that remains strong today.
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