Boulder company Gibbon's slackline featured in Madonna's Super Bowl halftime show
Denver Post Tuesday 7th February, 2012
Slackline athlete Andy Lewis, who is sponsored by Boulder-based Gibbon Slacklines, performs with Madonna during halftime at the Super Bowl on Sunday. Charlie Riedel, The Associated Press BOULDER - Most of America still might not know what slacklining is, but the millions watching Madonna perform during halftime at the Super Bowl saw the increasingl...





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