The two-mile pub run brought out dozens in character and costume, and it was all for a good cause.
This year's event benefited Girls on the Run of Greater Houston, which aims to get more girls out on the track for health and confidence.
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Many of the runners this year coordinated in rainbow hues and fanciful team costumes.
VIDEO: The Hot Undies Run in Rice Village draws runners
Don't miss out on the annual Hot Undies Run
PHOTOS: Runners strut their stuff in the 2015 Hot Undies Run
There were a few sprinkles as the race began, but it didn't scare off the competition. The runners took off from Gorgeous Gael Pub and ran through the streets of Rice Village with bright and happy faces.
PHOTOS: Check out the 2014 Hot Undies Run