Jingle bells jingled all the way to the finish line at the Santa Skivvies Run and street party in the Castro, an annual event that raises money for the San Francisco AIDS Foundation. So far, the 2017 event has raised $77,000 but will likely bring in nearly $100,000.

The event’s motto is “Drop Trou. Raise Funds. Fight AIDS,” reports the San Francisco Chronicle.

The AIDS organization provides support and prevention services to about 16,000 people living with HIV in the city.

“It speaks to the fact that San Francisco as a city has been very provocative in the fight against HIV,” Joe Hollendoner, chief executive of the foundation told the newspaper. “The Santa Skivvies Run is a prime example of coming together for important causes in a fun way that really celebrates the resiliency of our community.”

Check out the Chronicle article for a video of this year’s event. Below are just a few of the social media posts for #SantaSkivviesRun.

There were antler-clad men in faux fur G-strings and others wearing nothing but bedazzled boxer briefs, while tiny dogs dressed to the holiday nines blinked sleepily in the sun as drag queens spun circles on Segways. It is Christmastime in the Castro, and for the ninth year in a row, hundreds of men and women poured onto the streets wearing little to very little for the annual Santa Skivvies Run, a street party for the scantily clad that raises money for the San Francisco AIDS Foundation. (1) Runners approach the finish line. (2) Eric Furletti, Justin Burke, Joshua Pfaff and Mark Diao have their photo taken by Dez Joyal. (3) Runners react as they approach the finish line. (4) A table full of placards for the Santa photo booth. (5) Runners take a photo of their group while they wait for the light to change near the end of the race. (6) Louis Maskin gets his photo taken with Santa. ????: @scottstrazzante More ????♂️????????????♀️ pics: @sfchronicle_photos #Santa #Santas #Skivvies #underwear #SantaSkivviesRun #SF #SanFrancisco #running #race #marathon #charity #SFAIDSFoundation

A post shared by San Francisco Chronicle (@sfchronicle) on

Sunday in the City. #santaskivviesrun #santaskivviesrun2017 #sanfrancisco #sfcitylife #castrodistrictsf

A post shared by Jojo Varona (@jojovar) on

Aaaannnd another Santa Skivvies Run in the books. #merrychristmas #santa #santaskivviesrun #gaysofinstagram #instagay

A post shared by Taylor Jordan (@kellytaylorjordan) on