Sabrina B. & DJJuanyto Kevin Plank, the 39 year-old founder and CEO of Under Armour introduced Under Armour’s latest product, the UA Spine shoe, which will be available to the public on July 9th.  Alongside him were three of his star endorsers: the New England Patriots’ Tom Brady, the U.S. Ski Team’s Lindsey Vonn and the Charlotte Bobcats’ Kemba Walker. “This will be our biggest marketing push ever,” Plank said.