For decades the world of sports apparel was dominated by a few big names — Nike, Adidas, Puma — with newer upstarts like Under Armour and Gap Inc.’s Athleta chipping away, slightly, at their dominance ...

Just a few years ago, it was almost unheard of to wear sneakers, yoga pants or stretchy T-shirts in the workplace. That’s all changed, though. These days, people sport so-called athleisure wear in ...