Abstract: Additively manufactured articles of footwear comprising a sole portion and an upper portion 3D printed as a single piece. In some embodiments, the article of footwear can comprise an outer skin comprising a plurality of continuous beams extending adjacent to each other and defining at least part of an outer contour of the upper portion, at least part of an outer contour of the sole portion, or both. In some embodiments, the article of footwear can comprise an inner skin comprising a network of beams defining at least part of an inner contour of the upper portion. In some embodiments, the article of footwear can comprise a core structure that connects beams of the outer skin to beams of the inner skin.