These are awesome socks.  They form fit (I'm size 10.5 - 11 and ordered large) and wear comfortably.  I wear cowboy and work boots and wanted something warm but not too thick so I could wear them with cowboy boots.  They perform well in cold weather too.  They are not too high so cold air will get inside cowboy boots but unless its a blizzard not too bad.  I really like the compression feel of the mid sole area.  It may be therapeutic I not sure.  But I would highly recommend them to anyone that is looking for non bulky low or mid cut work boot socks.  Not itchy after first wash.  Shrink a bit after first wash but loosen up after wear.  Immediately bought another pair after wash and second wear.

I'm testing durability now.  I should be wearing them at least once a week though out winter and will report back.