As of today, I tried them on and they fit perfectly (Size 9D). They have sock space, but not recommended with thick cottons--perhaps, the slightly thinner type. They are extremely snug and I can feel they hug my foot comfortably. I will be updating this review accordingly. As for now, be aware that they fit very well.

***Update 1***

It has been less than a month since purchased, but I admit that the shoes do not hurt my feet at all. No hotspots, no heel or arch pain, and no discomfort. I ran my first 5 miles in them with no disruption whatever. I just ran 3 miles yesterday morning at about 36 F, felt like less, but the shoes did not present any discomfort due to the cold. In fact, my feet were not cold at all, the grip on the road/terrain was exceptional for what I needed it for. I am so far pleased with the results and will be making an update in 45 days if I remember to.