Since April of 2009, I have managed to run over 2,600 miles across paved road, trails and treadmills. Over that time, I have put many shoe brands and models through the test. I once ran exclusively in Adidas but their shoes let me down one too many times. They ran too narrow, had too much cushioning and did not breath well at all. While my love of Adidas faded, my love for the Nike Free running shoe series has grown. The Nike Free series is a system of minimalist shoes that offer a range of cushioning and fore foot flexion that you can’t find in almost any other line. What I love most about them is that they offer 3 different levels of cushioning that allow you to transition year over year to a more minimalist shoe. The shoe soles come in a 5 mm, 4mm and 3 mm heel drop. Each pair becomes more and more aggressive and advanced as you progress through the line.