Add a lucky finish to any Seattle Mariners look with this St Patrick's Day Shamrock Fill T-Shirt from New Era It features the team's logo on the front with a St Patrick's Day-themed fill The classic design makes this tee a must-have for any Seattle Mariners fan New Era Kelly Seattle Mariners St Patrick's Day Shamrock Fill T-Shirt Kelly Green, Large - MLB Ss/Ls/Sl/Mck Tees at Academy Sports