Modular sports boot liner system with interchangeable external insole

Abstract

Apparatus and associated methods relate to a footwear liner system including a liner portion to be worn on a foot and a releasably attachable external insole, releasably attachable to an underside of the liner. In an illustrative example, the external insole may be configured to provide arch support for the insole independent of the liner's conformability to the foot. In an illustrative example, the liner is pliable and moldable. In an illustrative example, the external insole includes a stiff arch support that is independently and releasably attachable to the liner. Various embodiments may advantageously provide an economical sports boot liner assembly with user-integratable custom insole.

What is claimed is: 
     
         1 . A boot insert assembly comprising:
 a conformable, moldable liner portion configured to receive and surround at least a human foot, and having a first attachment region on an underside of the liner portion; and   a stiff external insole having a second attachment region on a top surface of the external insole, and   wherein the first attachment region and second attachment region are configured to mate such that the top surface of the external insole is releasably secured to the underside of the liner portion.