Fig 1. Flowchart describing the consensus and verifying consensus process for different shoe feature properties (XX) for each running level (YY).

The participants were asked to provide feedback for the recommended properties for all runner levels on all 20 shoe features (XX₁). In the second- and third-rounds, the participants were asked to provide feedback for the recommended properties for all runner levels on the important shoe features and any additional shoe features the participants recommended (XX_2/3).