The Mariner's will be in their new Sunday alternate uniforms for the first time today : r/baseball

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Here's a look at the Mariners' new City Connect uniforms and the story behind them

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New Sunday Uniforms for the Mariners. Blue and yellow brought back on a slightly off-white base. No names on back. : r/baseball

Mariners should replace their Sunday cream jerseys with throwback white trident jerseys for the new Era (don't mind the poor photoshop) : r/Mariners

Mariners will announce new Sunday alternate uniforms this Friday - Lookout Landing

The Past Meets the Present in New Alternate Uniform

Mariners will announce new Sunday alternate uniforms this Friday - Lookout Landing

Grading the Mariners Promotional Uniforms Through the Years - Lookout Landing