In shoe fitting, what does the term 'inlay' refer to?

In the context of shoe fitting, the term 'inlay' specifically refers to the cushioning layer inside the shoe. This layer serves to provide comfort and support, contributing to the overall fit and feel of the shoe for the wearer. Inlays can also enhance shock absorption and help create a customized experience based on the individual's foot shape and needs.

The outermost layer of the shoe is primarily concerned with the shoe's exterior design and material, which does not directly impact the internal comfort and support offered by the inlay. The sole of the shoe is another separate component that primarily provides traction and stability but does not address comfort in the same way that an inlay does. Lastly, while the part supporting the arch is crucial for foot health, it is typically referred to as an arch support or orthotic, rather than an inlay. Thus, the inlay plays a critical role in enhancing the internal cushioning and support system of the shoe.