When people are depicted in heraldry their clothing and appearance are often described in some detail Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P174. We also find individual items of clothing used as charges in a coat of arms, and shoe is a good example of this. Sometimes these items are drawn in a somewhat stylised fashion, but this helps with recognition, important in distinguishing arms. Wade suggests that this may be representing “strength, stability and expedition”. The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P93