When we review a shoe on Believe in the Run, you can trust that we have run at least 20 miles in the trainer before giving you our opinion. There are three factors that influence when we do the minimum miles on a shoe. First, if the shoes suck we don’t want to run in them. Second, we have a lot of shoes that we need to review. Finally, the shoe might be right for a particular runner, but not ideal for our preferences.