A couple of weeks ago Toms shoes had a sweepstakes to win a free bottle of Essie polish to push their "One Day Without Shoes" event. It's a special color made especially for the collaboration, One Day Without Blues. I guess I was one of the 5,000 winners! I received my bottle today.
It looks like Coat Azure to me (perhaps a bit less green-toned), but I don't have it to compare. It's a dusty cornflower blue cream with subtle silvery shimmer, a bit brighter than in the picture. Formula was great, very easy to work with, on par with high-end brands. I am wearing two coats, but you might be able to get away with one. Very pretty color, but not particularly unique. Still, I'll never complain about free polish!