Just to update. They do OK, better than any others I have had so far. My feet get cold easily. I have found the best thing is a light pair of Darn Tough wool socks with a pair of Wiggy's Lamolite socks over that. I bought a size 12 and wear an 11 for shoes and boots I would wear when cold is not a concern.Just bought a pair of 800 g Danner Pronghorns for the upcoming season. We shall see…