do not buy helmet in USA
I suggest to NOT order a helmet in the USA when you are living anywhere else but in the USA.
I live in the Netherlands and ordered a Gentex helmet, but because this item is of tactical or strategic importance to the USA (apparently) such an item needs an export license to be shipped abroad (the same when you buy for example a FLIR camera, a PT6, a Cessna aircraft, or any other type of army/airforce/navy weaponry).
This procedure took in total a staggering 18 months to complete. And when we called this specific government agency to please please please put a stamp on the export license, the answer was: Sir we need to check this thoroughly, you do realize we are at war!
Sometimes they do exaggerate.