Mavic gives trail riders mountain bike-specific features with plenty of ventilation and comfort. The Notch provides full rear coverage for protection, and the fit is spot on with Mavic's Ergo Hold SL retention system. It has a whopping 6cm of adjustment, so the Notch fits so well, you might forget it's on. That's helped by wicking Ergo Fit pads that use progressive padding for serious comfort all ride long. Huge vents keep the air flowing, too. It also has reflective accents and a removable visor.