Darn Tough VermontDarn Tough Women's #1908 Hiker Boot Sock Full Cushion Socks

My feet sweat a lot so I'm not happy to select any socks, just any, I have to know first if my feet won't sweat.

how do you determine size for the sock?

are the top edges binding, or is there some looseness to them? I have some swelli g of the ankles, and can't have socks that bind. thanks!

Can they be put in the dryer?