Security at the Air Force Academy prevented a fan from wearing a "Keep Women’s Sports Female" shirt during a women’s volleyball match against San Jose State on Saturday. OutKick obtained video of the moment security officials told the fan, John Kopecky, that he had to unzip his sweatshirt to reveal what his T-shirt read underneath. Kopecky obliged, and after reading his shirt, security told him he couldn’t display that during the match.Kopecky told OutKick that the reasoning was due to his shirt being a "political" message, which was not allowed.CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM"They’ve never made me unzip