Confession time: I love working out and working clothes (sports bras, sneakers, you name it) — but I don’t really like leggings. It sounds odd, since they’re the quintessential workout bottom, but ...

Are leggings finally lagging? Suddenly, those black Lululemon stretchy pants you’ve been wearing for years look passé, plebeian—even prehistoric. All the with-it women (and men) in your workout class ...