Introduce your favorite small fan to the fun of summer days at the ballpark and the colorful personality of the Seattle Mariners mascot with this Mitchell & Ness Step Back Up T-Shirt. The soft cotton material and classic design emphasize all-day comfort, staying breathable whether they're running around the playground or cheering on their new favorite team. The carnival-style Seattle Mariners graphic printed on the chest celebrates the team mascot, making this tee a joyous introduction to America's pastime.