A single-shell polypropylene seat on a sled-base frame in welded powder-coated steel. The shell is injection-molded in one piece — no seams, no fasteners, no joinery to fail. The sled base glides over carpet, stacks denser than four-leg silhouettes, and distributes load across two continuous runners rather than four point-loads, which matters in high-turn restaurant floors and event spaces where chairs are moved constantly. Color is integral to t…