Insert type footwear

  • US 4,550,446 A
  • Filed: 03/31/1982
  • Issued: 11/05/1985
  • Est. Priority Date: 03/31/1982
  • Status: Expired due to Term
First Claim
Patent Images

1. A sock-type article adapted to be worn on the foot and having sole and heel regions adjacent to the sole and heel regions of a foot when worn, said sock-type article being substantially entirely formed of a lightweight, flexible material defining an interior space receivable of a foot, said material being substantially waterproof to prevent passage of water into said interior of the sock-type article through said material and at the same time moisture vapor permeable to allow passage of evaporated perspiration which may be formed on the foot from said interior of the sock-type article through said material, whereby the foot will be maintained as dry as possible when the sock-type article is worn thereon.

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