Patent ID: 8919776

Claim:
An article of footwear, comprising: an upper connected to an outsole, said upper having a closure element which is operative to secure a user's foot to the article of footwear; at least one maze unit located on said upper, said at least one maze unit comprising: (i) a base permanently connected to said upper, at a location so as not to interfere with the installation and operation of said closure member; (ii) an array of partitions extending outwardly from said base, said partitions being arranged in such a way as to form one or more channels; (iii) a transparent cover overlying said base and forming an enclosure within which said partitions and said one or more channels are located; (iv) at least one object located within said enclosure; said at least one maze unit being tilted in response to movement of the user's foot so that said at least one object may be moved by the user to a desired location along said one or more channels.