Photos of Sexy, Sweaty Men Raising Money for AIDS

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Concrete Hero takes participants through an urban obstacle course.

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Apparently, none of these folks thought to go around the barriers.

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He doesn't even look tired.

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This year, its second ever for the event, participants like this one teamed up to raise more than $500,000 for the cause.

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It couldn't have been easy.

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But they make doing good look easy.

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Now, all cleaned up, and on to the third year!
Tags: Activism