Nike Flex 2012 Run iD Custom Women's Running Shoes - White | Nike flex, Womens running shoes, Running sport shoes
Nike running shoes are shown on display and for sale at a store in Encinitas, California March 20, 2012. REUTERS/ Mike Blake (UNITED STATES Stock Photo - Alamy
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Nike running shoes are displayed at the U.S. Olympic athletics trials in Eugene, Oregon June 21, 2012. REUTERS/Mike Blake (UNITED STATE - Tags: SPORT ATHLETICS BUSINESS TEXTILE Stock Photo - Alamy