The Puma running shoes of Jamaica's Usain Bolt before the Men's 100m Semi-Final during day two of the 2017 IAAF World Championships at the London Stadium Stock Photo - Alamy
Usain Bolt Lends a Helping Hand to PUMA's Energy Return Ignite Running Shoe | Hypebeast
Nike shelves Viperfly amid fear it could wipe out Bolt's records
Tokyo Olympics: Usain Bolt, spike technology, 100m sprint, Nike, reaction, news, updates