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Jason Wu said he was feeling Zen, swiveling in an office chair in his studio near Penn Station. It was Saturday afternoon, the day before his runway show, and he was surrounded by his design team and stylists, fitting models in outfits from his spring 2021 collection. The clothes were bright and breezy; the waists were elastic, the bras were cashmere, the hats were big, and the sandals were flat.
