The Boston Red Sox Heated Rivalry Beverage Cooler in Blue is an officially licensed MLB baseball fan cup by Whirley DrinkWorks. With a capacity of 12 oz, this cooler is perfect for enjoying your favorite beverage while showing support for the Boston Red Sox during the regular season games. Its one-size design makes it suitable for both men and women, and the blue color adds a stylish touch to this must-have fan apparel. Made in China, this product is a must-have for any baseball enthusiast looking to add a unique item to their collection.