KORSA by Road Runner Sports, a running retailer, is an apparel collection built for runners by runners. Latin for “course”, KORSA is built to make you feel powerful and confident no matter which course you choose. In the 35+ years since Road Runner Sports started in the running business, we’ve learned through trial, error, and hard work exactly what you need to pursue your own path. And we’ve packed all that experience into KORSA. You don’t have to be an elite runner to appreciate the uncompromising attention to detail. But you’ll feel like one when you try it.