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

Colorado State University Undie Run (long version) Available on

Colorado State University fears 'Undie Run' could lead to sexual

University of Oregon students strip down for charity Undie Run

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

Colorado State University Undie Run: Students urged to not participate

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

Jockey to sponsor Jockey Undie Run and Flannel Fest at Petrifying

Photos: 2018 Undie Run at Colorado State University

Students defy call to end CSU's 'Undie Run