PITTSBURGH (KDKA) – The shockingly cold temperatures didn’t stop people from stripping down and running for a great cause.

The annual Cupid’s Undie Run was held Saturday in the North Shore. More than 1,000 people showed to run in their underwear.

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The event benefits the Children’s Tumor Foundation and this year’s run raised $300,000. People are encouraged to put on their best pair of undies, but not everyone was so scantily clad.

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While people were thrilled to be supporting a great cause, the frigid temperatures made it tough to enjoy.

“Very cold, might be the dumbest thing I’ve ever done,” joked one jogger.

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According to its website, Cupid’s Undie Run takes place in 36 cities and raised $3.5 million last year.