his new stretchy yarn could make your yoga pants fully recyclable

his new stretchy yarn could make your yoga pants fully recyclable

Your favorite stretchy workout clothes may be much easier to recycle one day, thanks to a new type of elastic yarn that is as strong and stretchy as today's spandex-containing fabrics.The yarn, described in a July 25 study in the journal ACS Materials Letters, is built entirely from polyethylene, the plastic used in milk jugs and single-use grocery bags. By contrast, most of today's stretchy fabrics blend spandex, a bouncy-but-weak polyurethane …