Shoe with knit upper portion

This invention describes a shoe with an upper part made from a single piece of knitted fabric. This fabric is specially designed with different areas: some are thicker or stiffer for support and durability, while others are thinner or more flexible for comfort. The claims specify that this knit structure includes distinct outer and inner layers, allowing for these varied properties across the shoe.

Why it matters: The core technology for producing multi-region knit uppers was already mature by 2021. The primary challenge remains the specialized industrial knitting machinery and design expertise required to implement the claimed continuous, layered knit structure with varying properties.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateIndustrial knitting machinery, custom textile design

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