The History of Heavy Metal is not limited to rock 'n roll - our hard hat divers will be a hit whether you wear this T-shirt or give one as a gift for that special diver in your life. The History of Diving Museum logo is featured on the upper left front and our hard-hat triplets design is centered on the shirt back. This khaki color shirt has special inks with a slight metallic appearance that accent the face plates of our trio as well as the brass and copper HDM logo helmet. Available in sizes Small - X-Large, short-sleeved 100% cotton knit.