Get ready to strip down for a cause at Cupid's Undie Run - Boise, hitting the streets of downtown Boise on February 21, 2026! This unique 1-mile fun run is far more than just a dash; it's a "pantless party with a purpose," bringing together thousands of spirited participants across the U.S. to raise vital funds and awareness for the Children's Tumor Foundation in their fight against Neurofibromatosis (NF). The event kicks off with a lively pre-party at Tom Grainey's Sporting Pub, located at 109 S 6th St, Boise, ID, building an electric atmosphere before you take to the urban course in your favorite undies.

The mile(ish) course winds through downtown Boise, offering a lighthearted jog rather than a competitive race, making it accessible and enjoyable for all participants (21+ only, please). Runners consistently praise the "wild time" and "great people watching" that define this event, often calling it "the best winter party ever". Typical race day conditions in late February in Boise see comfortable highs around 48F and lows around 30F, with a minimal 4% chance of precipitation, creating a brisk but often clear environment for your dash. The adventure culminates back at Tom Grainey's for an epic dance party, celebrating your cheeky contribution to a crucial charity.

Cupid's Undie Run stands out by transforming a simple run into an unforgettable experience, combining hilarity with charity. It's an opportunity to embrace the unusual, connect with a vibrant community, and make a tangible difference in the lives of those affected by NF. Leave your traditional running gear at home and prepare for an exhilarating and impactful day where your undies become a powerful statement.