Like many new trail helmets the Ambush includes many features that have come from requirements of enduro racing, such as being google compatible and a deep rear to offer increased protection. If you doubt the influence... look at how Mitch Ropelato
The press release from Specialized reads: "Lightweight, well ventilated, intuitively designed — sure, we're proud that our new Ambush Helmet meets the needs of trail riders. What we're most proud of, however, is that it passes the most stringent safety standards in the world. We made safety the priority, not an upgrade."
The Ambush will be available in Black, Hyper Green, Moto Orange and White
Source: I Am Specialized