If you take flat measurements of the insole, the outsole or the shoe itself, it will not give you the correct width or length fitting measurements. The lengths we publish on our size chart are Stick length measurements from the shoe last, which is the measurement from the heel to the toe of the shoe. The widths we publish on our size chart are a combination of the Stick width measurement of the shoe last bottom at its widest point and the total internal volume the shoe offers. The internal volume is the measurement of the material the upper of the shoe will accommodate. This is not a flat measurement of the carbon fiber outsole or the foam insole. The insole is based on the shoe last bottom gauge. This measurement will be narrower than the listed width on our size chart. This is because the rider’s foot will have overhang above the bottom of the shoe last. That overhang is what is measured and listed for the width. This is a three-dimensional measurement, and it is how we determine the Narrow, Regular, and Wide width for each model of shoe we offer.