Mike Acosta on X: 11/4/99 The Astros unveil a new brand identity to match their new ballpark, Enron Field, in 2000. The brick red, sand, and black combo was used through 2012.
The full story on Houston's iconic rainbow uniforms - ESPN
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Astros rainbow uniform history
to Die for Collectibles 1986 Houston Astros #34 Nolan Ryan Orange “Rainbow” Jersey, Size M, Near Mint
The Stars Rise Again
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MLB Jersey & Cap History
Rainbow resurgence: Bright Astros jerseys now a fan favorite - NBC Sports