Headwear store Hat Stop has an exclusive baseball cap design recently added to their online inventory. Top your outfit with the Seattle Mariners 30th Anniversary Emerald Green Walnut 59Fifty Fitted Hat. They used green for the panels of the dome, and walnut brown for the button & uppervisor. Embroidered for the front design is the Seattle Mariners logo, while the right panel has the Mariners 30th Anniversary side patch. They then used Vegas gold for the undervisor of the bill. On the left panel is the New Era Flag, and at the back is the MLB Batterman. Click here to grab one.