Last Summer I ran my first 50 mile ultramarathon, the North Face Endurance Challenge, in Massachusetts. Up until then, I had only ran two marathons and had no idea what I was getting myself into when I signed up to run 50 miles. To prepare for the ultramarathon, I read and researched a LOT. While the thorough research helped, I still didn’t feel super prepared. In my reading, I knew I’d need certain gear, but beyond that, what gear I bought was determined by people writing reviews and me hoping that their reviews didn’t suck. In our world of almost unlimited choice, it was very difficult to feel like I was doing the right thing…