Pick Your Shoes is probably the most trusted websites on the internet that does not have brick and mortar retailers. They are 100% without a doubt Legit.
I feel as though they are authentic, but I wouldn't go so far as to say Deadstock. The creasing around the ankle, bent tag on the inside, and non-factory lacing are all indicators that these have been worn before.
Everything seems good here, all their prices seem pretty spot on, and the website build quality is top notch. You usually don't see that on fake sites.