Guaranteed Comfort: “Uni Size” design with single shell size and wide range of fit system adjustment makes for quick, confident sizing with comfortable fit Integrated Visor: Designed to help block the sun and keep rain and low-hanging branches out of your face, without rattling or sagging Eyewear-Friendly: Designed with eyewear in mind, so you can stash your shades in the helmet securely without the temple arms causing discomfort against your scalp Light It Up: The LED-compatible design makes it easy to attach the Universal Lazer LED light at the back of the helmet for enhanced visibility Winter-Ready: For brisk winter rides, add the soft fleece Winter Kit for a cold weather conversion (Kit not included with helmet.) Uni Size Range: 54 – 61cm