Nathan Sports, Merrell, and Trail Sisters are launching a Run Around the World Camaraderie Challenge to help the fitness community stay connected and active during this time. The goal is to get people from all around the world to collaborate and contribute their miles to collectively total 24,901 miles, the distance around the globe. Participants can contribute in any way they choose–run inside, outside, up and down stairs, anywhere–and then upload their walk/run distances (as many as they…