Admittedly, real CADPAT is illegal in civilian hands (something to do with unique IR qualities), but there are already manufacturers making legal CADPAT copies. I'd still like to see a kilt made of the knock-off material.
I have a set of genuine CADPAT bdu's . The real stuff isn't illegal, per say. The stuff being sold to civilians as genuine CADPAT is in fact genuine. The reason some of it is allowed to be sold to the civilian market is because of slight "imperfections" in the bolt. The imperfection simply means that the color is not up to military spec. There are no imperfections that I can see in my bdu's. This is how it was explained to me by the dealer I bought mine from. You can easily tell if the cadpat you're looking at is fake or not, assuming you've held the real stuff. The real deal is more breathable than any other tactical clothing I've worn, and the camo itself almost seems to be able to "chameleon" its base color to whatever natural color surrounds it. Awesome stuff.