Regarding men's sizes, not sure this is true for the sneakers, but I wear a 40 in orans and wanted to try the men's izmir in store last weekend as a wanted a more "casual" shoe. Well my SA brought out a men's size 40 in izmir and I thought they would be huge but they were a perfect fit. I think it's worth a shot that the sneaker is the same.
I could not pull off the izmir so of course bought another pair of orans, but the sneaker is cute!