Stretchable Insole

  • US 20130232825A1
  • Filed: 03/06/2013
  • Published: 09/12/2013
  • Est. Priority Date: 03/07/2012
  • Status: Abandoned Application
First Claim
Patent Images

1. Waterproof footwear comprising a forefoot area and a rearfoot area, the waterproof footwear further comprising:

  • a liner material comprising at least a waterproof, water vapor permeable functional layer, the liner material further being secured to an upper material;

    a stretchable insole attached to the liner material; and

    a strobel board,wherein said stretchable insole comprises a plurality of layers comprising at least one textile layer and at least one polymeric layer, further wherein said forefoot area of said waterproof footwear exhibits a reduction of stiffness in comparison to the forefoot area of a standard footwear construction when subjected to the Mechanical Cushioning Test.

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