Speaking of summer: The actual size is a bit small. For me, a half size bigger would probably perfect. So I always need a few minutes until I am comfortable in it. Perhaps the shoes traipse still something out (they have not yet sooo often worn because: was previously also no summer yet). I hope that this time, I do not get so swollen feet in the summer that it still is really tight.
Anyway: buy and if it is quiet anyway just one size larger.