If you you're shopping for a NNN BC boot, REI has a few EU sizes on good discount now.
sale: $150 (50% off reg. $300)

https://www.rei.com/product/195510/fischer-bcx-transnordic-waterproof-cross-country-ski-boots

The Fischer Transnordic NNN BC fit my foot better than the similar spec Alpina Alaska NNN BC-- a sizing issue for me both in toe box and heel slip. I felt the toe box on the Transnordic to be a bit wider than the Alaska in the NNN BC offerings. For me, in the Alaska boot, I was in between EU whole sizes, and the toe box was too tight; plus, I had heel slip.

For those whose feet fit the Alaska boot, I know it's a great boot! Either in Alaska NNN BC or 75mm.

-James