Be ready when the baseball world turns its eyes to Citizens Bank Park in Philadelphia with this Seattle Mariners 2026 MLB All-Star Game 39THIRTY Flex Hat from New Era. Built on the brand's premier stretch-fit style, the 39THIRTY silhouette is designed for a comfortable, contoured feel right out of the box. Intricate embroidered graphics with raised details define the front, complemented by a commemorative fabric appliqué on the right-side crown. With its six-panel design and metal eyelets for a slick finish, this cap delivers a classic ballpark look as you represent the Seattle Mariners for the big event.