100% Polyester. Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Sweat-wicking fabric works with breathable mesh to help keep you cool and composed during fast-paced play. Breathable mesh at the back and under the arms. Ribbed insets stretch with you to let you move without restrictions. Slim, streamlined fit. Embroidered Swoosh design. Machine wash.