SEALSKINZ Unisex Suffield Merino Liner Wool Sock

just did an hour and a half hr hike at 7 degrees with these over a pair of pure silks. only the tips of my index fingers got a little cold.

They are great. Kept my feet dry for over 5hrs in the rain.

It's comfortable. Quality material. But I bought it as a liner for a heavy wool sock in winter boots, and it seems not quite up that task. In spring or summer, I'm sure they'll be fine . Admittedly, a temperature of 4 degrees may not be the best test, but that's what I bought these socks to do. And my feet were cold for half the day.

The listing photos say an M is US sizes 7-9 but the socks themselves indicate that M is US sizes 5-7.5. Will need to exchange these.