In the comments, she shares her "recipe": She uses four scoops of Rockin' Green Laundry Detergent ($26, Amazon) and soaks her workout clothes in warm water for ... they have Spandex or some ...

Well, those were screen-printed using water-based paints ... I myself have drawers full of black spandex and nothing else. These days, it feels like workout clothes are made to be aerodynamic ...

Rewearing workout clothes might actually be the right choice for the sake of the longevity of your clothes, and lowering your water bill. tirachard - stock.adobe.com Earlier this year, the French ...

Photo by Melissa Schriek for The New York Times Supported by By Susan Shain Chances are, your favorite exercise attire is synthetic, made from petroleum-based fibers like nylon, spandex and polyester.