Convertible tote ↔ backpack. 10 geometries, each tagged with an engineering verdict — PROVEN (ships today), PLAUSIBLE (needs named fix), EXPERIMENTAL (research project). Tote canon (L.L.Bean 1944 → Anya Hindmarch 2007), Rams/Norman/Maeda design heuristics, and patent + commercial precedent research feed every spec. Models auto-rotate; states auto-toggle every 5 s. View research doc →