Mariners to Wear Seattle Steelheads Uniforms May 16 vs. Boston

Seattle Mariners Nike City Connect Jersey 2023

History:  The West Coast Baseball Association was an attempt at a western Negro League competitor, but it only lasted one season. The Seattle entry in the league was actually Abe Saperstein's Harlem Globetrotter baseball team under a new name, that of a local variety of salmon.

Ebbets Field Flannels Seattle Steelheads 1946 Home Jersey

MARINERS BRING BACK PAT SHEA

MARINERS REVEAL NEW UNIFORMS AND SPECIALITY JERSEYS

The Uni Watch 2023 MLB Season Preview - by Paul Lukas

Julio Rodriguez Game-Used Steelheads Uniform - Jersey, Pants, Cap

Mariners Fashion Statement, by Mariners PR

Baseball: Mariners Cap Off Successful Homestand, Take Series from White Sox – Eli Sports Network

LOOK: Seattle Mariners Reveal 'City Connect' Uniforms - Fastball