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Have you ever wondered what the very first high-vis garment in history was?

It was not a vest. It was not a construction jacket. It was a wedding dress.

In the 1930s, Bob Switzer dyed his wife Patricia’s white gown in daylight-fluorescent paint just to see if the chemical formula worked. That was how Day-Glo was born.

Mark showed me pedestrian crash statistics for late October, but you do not need to dress children in builder vests to keep them safe. An irradiated bride costume is brilliant, dramatic, and visible from hundreds of metres away.

Does your Halloween costume work in the dark, or does it disappear the moment you step off the sidewalk?