Portrait of Wei Tang, Managing Editor, General Apparel Desk at Fexwear

Wei Tang

Wei Tang is the managing editor of the Fexwear library and edits the general apparel desk, which holds the broad reference pieces - garment glossaries, fit and occasion explainers, printing methods, and buyer primers that do not belong to a single product category. She also owns the editorial standard the other desks work to. That standard is deliberately unglamorous: name the source for a number, date a claim that will age, show the limits of a test, and label an opinion as an opinion. She reviews corrections, keeps the disclosure that Fexwear is a manufacturer visible wherever a commercial interest could colour an answer, and signs off on updates to older guides. If something in an article is wrong, her desk is where the fix and the note about the fix are published.

How Is Spandex Produced: Is It Plastic, and Is It Toxic?

Spandex is produced by synthesizing a polyurethane elastomer from diisocyanates and polyether or polyester macroglycols, then spinning that polymer into fine filaments using solution dry spinning—a method that accounts for roughly 95% of global output. It is entirely man-made, not…

What Is Spandex Made Of? From Petroleum to Your Skin (And Is It Safe?)

What Is Spandex Made Of? The Straight Answer If you want the core fact upfront: spandex is a synthetic elastomeric fiber built from a polyurethane-polyurea copolymer. The raw materials are petroleum-derived—specifically diisocyanates and long-chain polyether or polyester glycols. These are…