Mariners to Wear Seattle Steelheads Uniforms May 16 vs. Boston, by Mariners PR

Bryan Woo Game Used Seattle Steelheads Uniform - 6/17/23

Join New Day at T-Mobile Park for a special Mariners-themed show!

Mariners slug four homers to beat A's 8-2, snap 3-game skid

Former Seattle Supersonics basketball player Freddy Brown points toward home after throwing out the first pitch before a baseball game between the Seattle Mariners and the Los Angeles Angels, Sunday, June 19

MARINERS REVEAL NEW UNIFORMS AND SPECIALITY JERSEYS

Gallery: Mariners break out City Connect uniforms for 1st time - Seattle Sports

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

Seattle Steelheads Team-Issued Jersey - Bat Boy

The Mariners are these wearing throwback uniforms vs the Rays today to honor the Seattle Steelheads, a former Negro League team : r/baseball