Rearfoot : Forefoot Slope Ratio

If you are like the Gait Guys you care about the heel:forefoot ratio of a shoe as the biomechanics change in the shoe. The closer you get the heel and forefoot to the same plane of contact the more natural the foot biomechanics. This is, in part, what the trend of the minimalistic / barefoot trend in shoes is all about. There are many other factors, but this is a big one.