University of Nebraska volleyball player Harper Murray poses with her Avoli, right, and Adidas, left, volleyball shoes on the school campus in Lincoln, Neb., Sunday, Oct. 8, 2023. A volleyball shoe startup is bringing attention to colleges' multi-million-dollar contracts with athletic apparel companies and terms that prevent athletes from wearing other brands. Nebraska volleyball player Harper Murray is an ambassador for Avoli. (AP Photo/Eric Olson)