Cool Base ® technology is made with interlocking moisture-wicking fabric for a lightweight, breathable feel
Heat-sealed name and number on back of jersey
MLB Batterman patch on center back neck
Heat-sealed MLB Authentic Collection jock tag above left hem
Sewn-on tackle twill graphics
Arrive in this Seattle Mariners Ken Griffey Jr. Cooperstown Collection Cool Base Player jersey from Majestic, and you'll be ready to show your true loyalty. It features phenomenal graphics to show everyone you're the #1 fan!