I had my socks ordered in advance of a city trips, which should include two long-haul flights and a lot of walking. Already after the first flight I could find that my legs were not swollen, but I'm actually very vulnerable. The stockings have excellent support function, without excessive pressure or cutting. You are well on the lower leg and can not be seen even under tight pants thanks to the flat federal. The greatest effect I have however after a long day on your feet can tell: they were neither heavy, swollen or tired! I did not think that wearing the socks makes such a difference. I'll never exhausting city trips without support stockings companies (at least in winter).
I recommend the stockings one size smaller. I usually wear a size 39 and had ordered the stockings in 35-38. They fit very well. Even after repeated washing, they do not lose their shape - fully recommended.