The Phillies all-burgundy jerseys had zippers

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The Phillies will wear their red jerseys for Wednesday's game at Dodger Stadium

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Matt Breen on X: Next Saturday, the Phillies will wear these all-burgundy uniforms they wore for one night in 1979. Yes, they have zippers instead of buttons. Braves will also wear throwbacks.

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Uni Watch's Flashback -- The rise and fall of MLB zippers - ESPN

Phillies Infamous All-Burgundy Uniforms Return Today! – SportsLogos.Net News