100% polyester VaporKnit. This jersey takes the engineered breathability of Nike VaporKnit technology to the next level with quick-drying, high-stretch yarn designed to combat cling and the weight of moisture. Cooling zones in key areas utilize an open-knit structure to increase airflow where you need it most. Nike VaporKnit technology combines lightweight cooling, reduced cling and precision fit. Quick-drying, high-stretch yarn provides flexibility and comfort. Open-knit structure in key areas increases airflow. Swoosh to right chest AS Roma and Nike logo.