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Your preferred elastic exercise clothing might be a lot easier to recycle one day, thanks to a brand-new kind of flexible yarn that is as strong and elastic as today’s spandex-containing materials.

The yarn, explained in a July 25 research study in the journal ACS Materials Lettersis developed completely from polyethylenethe plastic utilized in milk containers and single-use grocery bags. By contrast, the majority of today’s elastic materials mix spandex, a bouncy-but-weak polyurethane fiber, with a harder fiber like polyester or nylon.

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