Thermal flex long sleeve is created for gym and street use! The high flexibility and breathability performance in the thermal fabric is perfect for the gym and looks great on a well built physique! Get the expression you like the most, see pictures for various prints on various colors! Quality: 60% cotton, 40% polyester. Fit: Wear it fitted if you have the shape, or get a larger size and "cover up" if you like it more loose!