Not long ago, the idea of wearing gym clothes to work was unthinkable. It wasn't just a fashion error. HR would send you home because you violated the dress code policy. But over the last decade, athleisure wear has muscled its way into men's fashion like Shaq down in the post. Athleisure is about freedom of movement and looking good when you do. In this guide, we'll explore athleisure pieces and footwear that will provide you with the tricky combo of unrestricted mobility and swagger.