Footwear assembly with 3-d printed, modular sole assembly

A footwear assembly, comprising:

• an upper defining an interior area configured to receive a foot of a wearer, the upper comprising a lower perimeter portion;
• and
• a modular sole assembly secured to the lower perimeter portion of the upper, wherein the sole assembly is made by one or more additive manufacturing processes and is free of adhesive materials, the sole assembly comprising:
• an insole portion connected to the lower perimeter portion of the upper and comprising a compressible lattice configured for absorption of compressive loads from the wearer's foot, the lattice having interconnected laths extending away from a platform layer configured to provide support for the wearer's foot, the insole portion having an insole perimeter portion, the insole portion forming a first sole module;
• a midsole portion connected to the insole portion, and comprising a midsole perimeter portion that interfaces with the insole perimeter portion, wherein at least the midsole portion forms a second sole module releasably affixed to the first sole module;
• an outsole portion connected to the midsole portion and positioned to form a ground engaging surface;
• first locking features integrally formed along the lower perimeter portion of the upper or along the insole perimeter portion;
• and
• second locking features integrally formed along the midsole portion and configured to releasably mate with the first locking features and fixedly hold the midsole portion together with the insole portion and the upper without use of adhesive material.