In October 2014, the NFL fined player Colin Kaepernick for wearing pink-colored Beats headphones (in observance of National Breast Cancer Awareness Month) during a post-game press conference, violating rules that prohibit players from displaying the logos of non-sponsors during games, practices, and pre/post-game media appearances. His actions infringed the exclusive sponsorship rights of Bose Corporation, who had become an official sponsor of the NFL as of the 2014 season. In response to the fine, Kaepernick covered the Beats logo on the headphones with athletic tape during a subsequent press conference.