Invention Grant
US07934327B2 Torsion system for an article of footwear 有权
鞋类扭力系统

Torsion system for an article of footwear
Abstract:
An article of footwear includes a torsion system constructed of a material and configured to allow, in a pre-selected manner, rotation of a forefoot portion of the article of footwear relative to a rearfoot portion of the article of footwear about a longitudinal axis of the article while substantially precluding bending in an intermediate portion thereof.
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