Just when you thought leggings were the ubiquitous style you couldn't live without, the must-have item is now, hands-down, leather leggings. No, not just on rock star style mavens (think Gwen Stefani) ...

Add Yahoo as a preferred source to see more of our stories on Google. Black leggings are a universally beloved wardrobe staple, but they're not exactly appropriate for a day at the office or drinks ...