It is super-portable, roomy enough for your suit jacket, and just enough to protect you in the rain.

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We rowed through the rain to a jetty, where an older woman waited beside a man in a suit wearing a wreath of roses on his head.

WSJ: Taking Gondoliering Lessons in Venice, Italy

Convertible pieces have been a trademark of sorts for the designer: In the past, he's devised a reversible satin-lapelled tuxedo that's also a navy suit, and among next spring's offerings is a linen blazer whose other side is a nylon rain slicker.

WSJ: 'Transformer' Men's Outerwear: Action Figures