Colorado State University's annual 'Undie Run' is Friday

Undie Run: Charge of the Bobcat brigade enlivens campus

Undie Run 2019: More than 1K participate in Colorado State

Thousands of students strip for end-of-the-year CSU Undie Run

CSU wants to stop annual 'Undie Run

Austin Humphreys on X: PHOTOS: #CSU undie run @coloradoan https

Students strip down for charity Undie Run

CSU UNDIE RUN 2022

Thousands of students strip for end-of-the-year CSU Undie Run

Colorado State Cracks Down On Annual 'Undie Run' Where Students

Colorado State University officials ask students to avoid annual

Colorado State University Undie Run lives on in 2019