Golds Gym Muscle Joe T Shirt Upgrade your gym wear with this iconic Muscle Joe T Shirt by Golds Gym, crafted from a mix of cotton and polyester fabric for a light weighted and all day comfort design. This t shirt features short sleeves, ribbed crew neckline and is finished with a large ionic Gold’s Gym graphic embossed on the front for instant brand recognition. Material 60% cotton, 40% polyester. Machine washable at 40 degree