Researchers say cozy clothes are emerging as a source of plastic that's increasingly ending up in oceans and possibly contaminating seafood. Yoga pants and sweat-wicking athletic wear shed microscopic plastic fibers when they're laundered. Wastewater systems flush the microfibers into waterways, eventually reaching the sea - and then maybe your high-fiber seafood special.
From the Associated Press:
... Recent studies have shown that microfibers can end up in the stomachs of marine animals, including seafood, like oysters. Experts increasingly suggest that manufacturers of washing machines — not just body washes or other scrubbing detergents — may need to be targeted next in efforts to reduce plastic waste in the oceans.