I use an Arai XD and my wife has the newer version, the Arai XD3. Only difference are the visors and the vents shapes. The shells are the same. We've loved them. Many friends have these or the Shoei Hornet and everyone is quite happy with them. They can be quite expensive, but there are plenty of online sources that will knock hundreds off the price. Especially for the ones with graphics rather than solid colors. Once they change the graphics, the previous years go on steep discount. I've seen new Arai XD3 for around $350. The Large and XLarge go fast when they discount them, so you have to be quick, but mediums and smalls are around a bit longer.
If you are comfortable, you can buy used. Buying used helmets is a touchy subject, but if you trust the source and they can honestly say it has never been dropped or crashed in, that is an option. A helmet should be replaced if it is crashed in hard or dropped onto concrete from a tall height. Such trauma can damage the protective quality of the helmet even if there is little or no cosmetic damage. Some people have several helmets and after one season, decide they don't want or need a dual sport helmet, so there can be good deals. Just realize that most manufactures say a helmet should be replaced every 5 years or so because of natural material break-down due to environmental exposure and time and to take advantage of advances in helmet technology, etc. Some don't buy into that train of thought and some do. Up to you. If so, you may not want to buy a used helmet if it is 3+ years old.
As a point to consider, some have reported the Icon Variant helmet has a fair amount of optical distortion. I don't know if that is all of them or just an occasional one, but it seems to come up.
I agree with Macca that the visors are a big plus of these type of helmets. I wear my XD not matter if I'm on a dual sport or street bike. The visor comes in handy for blocking the sun so often, that riding without a visor can be annoying every time the sun blasts me in the eyes. Yes, one could wear sunglasses, but if your screen is dusty, sun hitting it can still make it harder to see than if it was shaded. Like a dirty windshield on a car when the sun hits it.
