The product is a rare Pearl Jam snapback hat from the band's 2016 Boston Fenway Park baseball game. The green shamrock design adds a unique and festive touch to this original piece of music memorabilia. Made with wool in China, this limited edition hat is a must-have for any Pearl Jam fan or collector of rock and pop memorabilia. The exclusive design and association with the iconic band make it a valuable addition to any music enthusiast's collection.