![Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly](https://c8.alamy.com/comp/2E6EFJ1/twin-brothers-adam-l-and-ryan-goldston-23-pose-with-their-300-concept-1-spring-loaded-athletic-shoe-which-has-been-banned-by-the-nba-at-the-athletic-propulsion-labs-office-in-beverly-hills-los-angeles-in-california-october-21-2010-according-to-the-nba-rules-equipment-that-give-players-a-competitive-edge-are-banned-including-the-concept-1-shoe-which-claims-to-increase-vertical-leap-reuterslucy-nicholson-united-states-tags-sport-basketball-society-2E6EFJ1.jpg)
Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly
![Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly](https://c8.alamy.com/comp/2E5YEJ0/twin-brothers-adam-l-and-ryan-goldston-23-pose-with-their-300-concept-1-spring-loaded-athletic-shoe-which-has-been-banned-by-the-nba-at-the-athletic-propulsion-labs-office-in-beverly-hills-los-angeles-in-california-october-21-2010-according-to-the-nba-rules-equipment-that-give-players-a-competitive-edge-are-banned-including-the-concept-1-shoe-which-claims-to-increase-vertical-leap-reuterslucy-nicholson-united-states-tags-sport-basketball-society-2E5YEJ0.jpg)
Twin brothers Adam (L) and Ryan Goldston, 23, pose with their $300 'Concept 1' spring-loaded athletic shoe, which has been banned by the NBA, at the Athletic Propulsion Labs office in Beverly
![Athletic Propulsion Labs® Debuts Concept 2 In Red/Energy Exclusively at Saks Fifth Avenue Beverly Hills Pop-Up Shop and Online Athletic Propulsion Labs® Debuts Concept 2 In Red/Energy Exclusively at Saks Fifth Avenue Beverly Hills Pop-Up Shop and Online](https://ww1.prweb.com/prfiles/2012/04/10/9390811/APL_Concept2_PRred3.jpg)
Athletic Propulsion Labs® Debuts Concept 2 In Red/Energy Exclusively at Saks Fifth Avenue Beverly Hills Pop-Up Shop and Online
![Adam and Ryan Goldston's $300 'Concept 1' spring-loaded athletic shoes, which have been banned by the NBA, are shown at the Athletic Propulsion Labs office in Beverly Hills, Los Angeles in California, Adam and Ryan Goldston's $300 'Concept 1' spring-loaded athletic shoes, which have been banned by the NBA, are shown at the Athletic Propulsion Labs office in Beverly Hills, Los Angeles in California,](https://c8.alamy.com/comp/2E6E2JW/adam-and-ryan-goldstons-300-concept-1-spring-loaded-athletic-shoes-which-have-been-banned-by-the-nba-are-shown-at-the-athletic-propulsion-labs-office-in-beverly-hills-los-angeles-in-california-october-21-2010-according-to-the-nba-rules-equipment-that-give-players-a-competitive-edge-are-banned-including-the-concept-1-shoe-which-claims-to-increase-vertical-leap-reuterslucy-nicholson-united-states-tags-sport-basketball-society-2E6E2JW.jpg)