Enjoy old school styles and celebrate your favorite retired players by browsing our official Seattle Mariners Cooperstown Collection Hats & gear at Fanatics.com. From throwback Mariners Cooperstown jerseys by Mitchell & Ness to retro Cooperstown Seattle Mariners t-shirts, we have everything you need to add to your team-inspired wardrobe and collection so you can really show off your team dedication in a outfit that will always look cool and game-day ready. Shop by team or player to find throwback Mariners baseball jerseys, retired player jerseys, retro baseball shirts, and much more classic apparel included in our Seattle Mariners Cooperstown Collection. Be sure to check out our Cooperstown Mariners hoodies & sweatshirts or our Seattle Mariners Cooperstown hats to top off your old school look. Seattle Mariners Cooperstown Collection memorabilia and accessories are also available and make great additions to your MLB collection. At Fanatics.com we have all the authentic styles and officially licensed gear to choose from, so shop with us today.