Abstract: A method for fabrication of one or more components of an article of footwear is provided. In one example, the method includes fabricating a mixture of polyurethane (PU) precursors and coffee grounds of a first size using a two-step mixing, and then injection molding one or more components of the article of footwear using the mixture, the one or more components of the article of footwear formed of a coffee grounds-PU composite material.

Abstract: A mould assembly for moulding two soles for two shoes 1 simultaneously and comprising an upper mould part and a lower mould part 16. The upper mould part comprises a first side frame 8 and a second side frame 9 and between them a middle frame 10. The side frames are adapted to be laterally movable in relation to the middle frame 10 and the lower mould part 16 The mould assembly comprises two cavities 15?,15? for forming the soles. The mould assembly comprises force means 37 adapted to move the two side frames 8, 9 in a straight and linear movement towards the middle frame 10. The lower mould part 16 is adapted to being vertically movable in relation to the upper mould part.