Stay warm and stylish with a new Mens Mariners sweater or dress shirt from MLB Shop. Browse our great selection of Seattle Mariners Mens shirts and sweaters to add to your wardrobe. From classic Mens Mariners button-up shirts to festive Mariners ugly sweaters, we have just the right look for you. Check out our Mariners Hawaiian shirts for a fun twist on team-inspired fashion. Enjoy cheering on your team wherever your go with our Mens Seattle Mariners zip-up sweaters, long sleeve button-ups, cardigans and more. Whether you're looking for something to stay warm in the colder months or for something to wear at the office, MLB Shop is your one-stop shop.