Kourtney Kardashian run sunglasses spandex

Run, Kourtney. Run!

Kourtney Kardashian made a frantic dash to her car after leaving a friend's house in Calabasas yesterday. The fashion-forward designer donned workout gear, complete with sunglasses and neon orange-accented running shoes. We wonder if she's sporting MILF Arthur George socks as well.

It's hard to believe that she gave birth to Penelope less than a year ago. The Keeping Up with the Kardashians star looks slimmer than ever.

Aside from exercising regularly, the mom of two has also been keeping busy with work. In fact, she and her sisters unveiled their latest Kardashian Kollection line Saturday in Houston. The eighth season of Keeping Up premieres on June 2.