Big-band music filled Piscina Cozzi, a Mussolini-era indoor swimming pool, taking the audience back in time. A squad of models lined up in identical white cloaks and goggles before 20 of them disrobed and took to the lap pool. Thirty-two strolled around the pool in summery suits and rainwear. The truncated silhouettes and retro sensibility were unmistakably Thom Browne, but with Moncler logos. Finally, the whole cast filled a grand stairway, and Browne took his place among them, waving like a beloved head of state.