cupid’s undie run is committed to finding a cure for nf! Every February, thousands of undie runners in cities all across the U.S. come together, whether it be in-person or virtually, to support those affected by NF.

An Undie Run is an event where a large number of people disrobe until they are only wearing underwear, and then run. The site of Undie Runs are typically college campuses, but they may occur on other sites such as streets. [ 1 ]

Cupid’s Undie Run participants can earn the exclusive red Undie Badge next to their profile when they reach the $250-level undie reward. Step up, strip down, and snag your badge to show you’re making a difference! Watch in real-time as these legends support our barely-clothed crusaders.

3 days ago · Registration is open for our 2025 events! Every February, thousands of undie runners in cities across the U.S. come together, whether it be in-person or virtually, to support those affected by NF, a group of genetic conditions that cause tumors to grow on nerves throughout the body.

Feb 10, 2024 · Join us in February for Cupid's Undie Run, a fun run in your undies all for charity. Proceeds benefit Neurofibromatosis research.

In February, thousands of bold, pants-less participants will hit the streets in 34 cities across the U.S. for the annual Cupid’s Undie Run, a one-of-a-kind fundraiser for the Children’s Tumor Foundation (CTF).

2 days ago · Cupid's Undie Run, a unique and lighthearted event, pushes the boundaries for charity as participants strip down in solidarity and run in their underwear, just as Cupid himself might.

Cupid’s Undie Run is where a little crazy meets a lot of charity. Tumors suck and we’re here to fight them with the most fun event in the world. Join us on a mission you’ll never forget! What’s up with the undies?! Raising money to cure a nasty genetic disorder not enough for you?

Registration is open for our 2025 events! Every February, thousands of undie runners in cities across the U.S. come together, whether it be in-person or virtually, to support those affected by NF, a group of genetic conditions that cause tumors to grow on nerves throughout the body.

3 days ago · Hundreds of St. Louisans will brave the cold this February for the nation’s largest pantsless party and mile-ish run for charity, to raise awareness and put the fun in fundraising to find a cure for neurofibromatosis. This is the 13th Anniversary of Cupid’s Undie Run in St. Louis!