Just as the Bull Shark can live in salt and fresh water, the Shark Evo-One 2 can operate as a full face and open face helmet with a quick flip of the chin bar. Other modular helmets might as well be bottom feeders since most chin bars do not adapt to to your needs like the Shark Evo-One 2. Most other modular helmets have a chin bar that flips up only to catch wind and throw off the balance of the helmet. The Evo-One 2 chin bar flips all the way from front to back, keeping the weight of the helmet low and the chin bar out of wind gusts.