Hand warmers, yak tracks, gloves, wool hats and… shorts?

Temperatures in Missoula stayed below freezing Friday, but mail carriers going door to door say shorts actually keep them warmer.

“We understand that if you start sweating-you get colder, and that could get even worse. So when it gets to around 6 to 25 degrees, we like to dissipate the heat so that we aren’t sweating. Once you get sweaty and cold, it’s bad. We have pants and stuff so we wear those when it’s a lot colder.”

Today we followed Larry Golie around on his route with the U.S. Postal Service, and he said dropping temperatures are one of the biggest challenges of the already busy holiday season.

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Source: The mystery of why mail carriers wear shorts has been revealed