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Patent drawing for Running shoes, hiking shoes and boots, snowboard boots, alpine boots, hiking boots, and the like, having waterproof/breathable moisture transfer characteristics
US 20,190,289,954 A1
Footwear US 20,190,289,954 A1 Expired

Running shoes, hiking shoes and boots, snowboard boots, alpine boots, hiking boots, and the like, having waterproof/breathable moisture transfer characteristics

This invention describes a multi-layered lining system for athletic and outdoor footwear like running shoes and boots. It works by combining an inner antimicrobial, moisture-wicking fabric with a unique middle layer featuring silver-infused, shaped fibers and germicidal foam, all insulated and protected by an outer waterproof material. The layers are designed to keep feet dry from external moisture while allowing sweat to escape, with at least two layers laminated together.

Why it matters: Since 2019, advancements in material science have improved the performance and cost-effectiveness of breathable membranes and integrated antimicrobial textiles, making such complex multi-layer composites more accessible.

Status
ExpiredProtection ended and was never renewed
How hard to build
SpecializedCustom fibers, germicidal foam, lamination

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