Footwear product developers provide interface between design and production. They engineer the footwear prototypes previously created by designers. They select, design or re-design lasts and footwear components, make patterns for uppers, linings and bottom components, and produce technical drawings for a various range of tools (e.g. cutting dies, mould, etc.). They also produce and evaluate footwear prototypes, grade and produce sizing samples, perform required tests for samples and confirm the customer’s qualitative and pricing constraints.