You don't want the blue anyways...I found myself a Dillon dealership in Germany, but all they have is black, silver and gold.. no blue..
Theoretically, if I buy 1 pair, I can keep ordering new sets, all I need to do is convince them of the fact that my local optometrist can cut the lenses too, in order to 'save the shipping costs' .
Unless it's an NIR Blue...
The regular Blue is more reflective...