This New York Mets New Era Upside Down 59Fifty Fitted hat in size 7 is a very rare piece featuring an upside-down Mets logo design. Made of 100% polyester, the black hat pays homage to Shea Stadium and Mr. Met, making it perfect for travel, casual wear, or even workwear. With a unique theme of Opening Day and Shea Stadium, this fitted hat is a noteworthy addition to any Mets fan's collection.