The Nike Flex Classic Slim Headbands are designed to elevate your fitness and training regimen by keeping your hair secure and out of the way. These headbands offer a fitted, next-to-skin feel thanks to their unique blend of 76% Polyester, 13% Silicone, and 11% Spandex. This technically advanced fabric combination ensures a secure fit, providing various wearing options to accommodate your workout style. With these headbands, you can focus on your performance, whether you're running a marathon, doing high-intensity interval training, or mastering a yoga pose.