Are you ready for the excitement of the this year's MLB Playoffs? Fanatics is fully stocked with officially licensed Mariners Postseason gear, including Seattle Mariners October Ready shirts and more. Put your team spirit on display with an authentic Mariners Postseason hat or hoodie from our shop at Fanatics.com. Follow your team to victory and shop the best selection of Seattle Mariners Playoffs apparel and gear so you can cheer them on to victory in style. Don't forget to check out our assortment of official Mariners Postseason collectibles, accessories and more so you can commemorate your team's success and display it for years to come.