Footwear article including circular knit structures

This invention describes a shoe upper made from two layers of circular-knit fabric. These layers are designed to fold together, with a special functional material sandwiched between them. This functional material, which could be applied by spraying, helps give the shoe specific properties, all within a single, seamlessly knitted structure.

Why it matters: Filed before advanced circular knitting machines could integrate diverse functional materials with greater precision. New sprayable functional layers offer enhanced performance or durability.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCircular knitting machines, spray application equipment

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