Embroidery decoration. Stay cool, covered and comfortable in this cap. Nike AeroBill technology integrates proprietary lightweight construction with breathable, sweat-wicking fabric for enhanced comfort and reduced distraction. - 100% Dri-FIT polyester twill - Unstructured - Low-profile - Hook and loop closure with pull tab - Contrast embroidered Swoosh logo on left-side middle panel _Please note: Although this cap is noted as M/L on the label and on the ordering grid, it is only offered in one size. It is One Size Fits All (OSFA)._