CUMMINS Mens SS Pocket T Shirt Gray 3X This T-shirt is perfect for Cummins diesel and gas-powered engine fans. It is made of heavyweight cotton blend and has a chest pocket for added functionality. The comfortable unisex fit designed with a generous cut makes it great for weekend wear or workwear. Made of 200-210 GSM fabric - a great choice for those who want a Cummins official licensed T-shirt. A chest pocket adds an extra bit of functionality.