Article of Footwear Formed From Two Preforms and Method and Mold for Manufacturing Same

An article of footwear formed by the steps of:

• placing first and second preforms into a first recess in a first portion of a mold, a second portion of the mold having a second recess that cooperates with the first recess to define a midsole recess, the first portion and the second portion cooperating to define a first overflow chamber and a first channel connecting the first overflow chamber to the midsole recess the first portion having a projection extending inwardly into the first recess about an upper peripheral edge thereof;
• closing the mold by positioning the first and second portions in contact with one another;
• heating the mold for a predetermined period of time at a predetermined temperature such that the first and second preforms melt and bond together to form a midsole within the first recess, with a portion of each of the first and second preforms flowing through the first channel into the first overflow chamber to form a first overflow portion;
• removing the midsole from the mold;
• allowing the midsole to expand;
• and
• cutting away the first overflow portion of the midsole.