The J-Rock is the first of our shirts to be available in American Apparel's tri-blend track shirt (50% cotton, 25% polyester, 25% rayon). It has a very soft feel like vintage shirt, but the polyester element makes is stretchy and more form-fitting. To this we add the Tom of Finland biker head in orange foil with the signature on the back, and end up with a POP! Jason Rock (below) got his with our "D-Bag Cut #2". This particular shirt runs XS - 2X only.