US Patent 11503873 Cycling shoe with lateral metatarsal expansion zone

A cycling shoe comprises a sole defining an undersurface of the cycling shoe, the sole having connection holes configured for connection of a pedal cleat to the sole. An upper is connected to the sole and defining with the sole a foot-receiving cavity. An expansion zone is located in a lateral or medial subportion of a metatarsal portion and/or toe portion of the cycling shoe and configured to be opposite a portion of at least a fifth metatarsal of a wearer of the cycling shoe, the expansion zone being entirely surrounded by a window of structural upper paneling and defined by at least one panel having a greater stretching characteristics than the structural upper paneling of the window.