The product is a vintage 1990 Bill Mazeroski Pittsburgh Pirates T-shirt in size L. The shirt is a rare find for fans of Major League Baseball, specifically the Pittsburgh Pirates. It is a shirt for men who admire Bill Mazeroski, a former player for the team, and want to show their support for the team. This unique piece of fan apparel is a must-have for any baseball enthusiast looking to add a nostalgic touch to their collection.