Superfeet of Ferndale, Washington, has acquired RSscan International, a maker of systems to scan and analyze feet, notably for athletes. The deal's terms remain undisclosed, but it will enable the American insole and footwear brand to expand its research and manufacturing infrastructure. The combined company will have at least seven biomechanists, two R&D teams, pressure plate development and manufacturing, and insole and footwear production facilities in both the U.S. and Europe. Superfeet has already worked with RSscan on its ME3D insole and the Fitstation platform. RSscan is based in Paal, Belgium.