Sept. 12, 2023 10:22 am ETPolyester is the refined sugar of our wardrobes: It’s cheap, has an iffy reputation and is in almost everything, from stretchy leggings to $4,000 jackets. An estimated 34 million tons of it went into apparel in 2021, according to Textile Exchange, a nonprofit focused on climate change and the fashion and textile industries. That makes it the most-used material in clothing.Copyright ©2023 Dow Jones & Company, Inc. All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8