Patent ID: 6865823

Claim:
An insole for footwear comprising: a plastic top foil and a plastic bottom foil having edge regions; and one or more cavities formed between the top foil and the bottom foil and filled with a liquid or a gel; wherein the top foil and the bottom foil are impermeable with respect to the liquid or gel and are joined together at least along the edge regions; wherein at least one of said foils is equipped with a fabric extending over an outer surface of said at least one of said foils; wherein the fabric extends parallel with said at least one of said foils; and wherein the fabric is joined with said at least one of said foils by at least partially pressing the fabric into said at least one of said foils such that the fabric penetrates below an exterior surface of said at least one of said foils for reinforcing the mechanical strength of the foil against creep.