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Las Nike Viperfly, archivadas por temor a superar récords de Bolt
Usain Bolt of Jamaica sports new running shoes after the ninth men's 100 metres heats during the world athletics championships at the Olympic stadium in Berlin, August 15, 2009. REUTERS/Michael Dalder (GERMANY
Usain Bolt Did NOT Sign With Nike - Peralta Design
Puma Unveils Disc Running Sneakers for Usain Bolt & Other Athletes – Footwear News
Nike shoes 'threaten Usain Bolt's sprint records' | Sport | The Times
Advances in spike technology are laughable and unfair, says Bolt | Reuters
London 2012: Nike's Volt shoes capture marketing gold | The Star
Usain Bolt says he could have run even faster with super spikes
Tokyo Olympics 2021: Usain Bolt slams shoe technology advances