Polyester is one of the most popular fabrics in the world. Made from PET plastic, it is prized for its durability, lightness, and low cost of production. While these characteristics make it ideal for various uses across the textile industry, the oversupply of polyester has also fueled an environmental disaster. Now, brands like Adidas, Nike, and Shein are trying to increase the amount of polyester made from recycled plastics -- but is this the best use of old plastic? We visited Tamil Nadu, Indi