Patent ID: 7591083

Claim:
A footwear structure comprising: an outsole comprising a top surface having shank interlock portion; an upper, said upper being separate from said outsole and being secured to said outsole to at least partially define a cavity for receiving a foot, said upper comprising: a top portion, and a separate a bottom portion secured to said top portion, said bottom portion having a corresponding shank interlock portion which mates with said shank interlock portion of said outsole, said bottom portion comprising a first section, and a separate second section secured to said first section; and a midsole at least partially disposed within said cavity with said bottom portion of said upper disposed at least partially between said top surface of said outsole and a bottom surface of said midsole, said bottom surface of said midsole having a midsole shank interlock portion which mates with said corresponding shank interlock portion of said upper.