WaveCel advanced helmet technology. The Boa® System lets you easily secure and adjust helmet fit with just one hand. Fidlock magnetic buckle fastens effortlessly for a quick, secure fit. The highly ventilated design offers more airflow to keep you cool. Soft, comfortable, moisture-wicking and washable helmet pads. Reflective elements on the back of the helmet offer enhanced visibility to be seen. The Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership.