You've been a huge Seattle Mariners fan for years now and since you have a new little fan in your life, you want to pass that fandom down to your little guy. You can do just that when you get him this Ken Griffey Jr. Seattle Mariners Alternate Official Cool Base player jersey from Majestic. This jersey features distinctive Seattle Mariners graphics on both the front and back, including Ken Griffey Jr.'s last name and number. The Cool Base technology built into the jersey wicks away moisture and will give him a breathable and lightweight feel so he can stay comfy. This jersey will help inspire all around him to unify and support Ken Griffey Jr. and the Seattle Mariners.