I use these socks for both trekking/climbing and as dress socks. For trekking/climbing they were very comfortable under heavier socks and did an excellent job of wicking away moisture. I didn't get any blisters, even with heavy mountaineering boots and my feet were stink-free (which can be a problem with my feet). They double well as dress socks as they are very comfortable as a stand-alone.

I always get cold feet really no matter what I have on for socks
I use the smart wool extra heavy weights but I tend to sweat a little
and then I loose the heat, I added these liners they work good my feet dont sweat and it keeps the good heat inside.
They actually feel like dress socks

I've used Patagonia and REI liners up until now when I wanted to try these since all mine have holes by now. These are slightly heavier then the prior brands, and I welcomed it - still light, but less likely to rip after a season. Substantial. I highly recommend these liners, they performed on the trail --and they can also hold their own in the city if I'm in a rush and they're the only socks I can grab. I plan to get more.

These socks work out great for me. In the extreme heat and adverse conditions they really help prevent blisters. I am glad that I got them and will get more soon.

These socks rode down my shins when I wore them with boots. They are more scratchy than I was expecting/hoping but not too bad. I would not want to use these as a liner b/c they are scratchy.

these are great to have on extended trips. If you wear these inside of your regular smartwools, you won't get as much sweat and grime on the full sized pair making them last longer without washing. With the liners, you can wash them in a stream and they will dry much faster than the regular socks.

Not only that, but the black ones make great dress socks as well.

What can you really say about a sock? It's comfortable under my hiking socks, much moreso that a thin poylester liner (never tried silk). It wicks well. Being merino, it doesn't get smelly, which along with the solid black color make it a great travel sock.

Great when backpacking, I wore them for 5 days straight (washed in rivers) on a recent backpacking trip. They stayed clean and odor free, and dried fast when I washed them. The cushioning is nice too. Recommended!

Well, what and how much can you say about socks ? For me these are if not the best some of the best pairs of socks I've ever used.

These socks are really good. They feel great, stays in place and doesn't smell after a whole day walking in running shoes. A big recommandation from here!

i wore one pair on a 7 day 75 mile backpacking trip in Sierra/King's Canyon (rinsed the trail dust out at the end of the day) and then climbed Rainier 2 days later with the same pair. they are the best liner sock i've ever worn. this sock is so comfortable i bought 4 more pair to wear at work.

as usual, good product from smartwool. no scratchyness, good fit, nice and thin. hope they wear nicely.

They did exactly what they were supposed to. Kept my feet dry, warm and stink free. I wore them under thicker hiking socks for 4 days on the Inca Trail

I bought these socks to pair with the light weight Smart Wool Phd hiking socks for a 20 mile backpacking trip in Escalante. The socks were great no blisters and wicked moisture as you would expect from a Smart Wool product. Highly recommended.

Inside my snug, waterproof hiking shoes, these socks are just about perfect. They're lightweight, soft, never overly warm, they stay in place without being too snug, they don't bunch up or bind anywhere and they keep my feet perfectly dry. The only other thing I could wish for is that they self-laundered!

Warm when wet, warm when dry, last forever, fit perfect.

Light and warm!

I wear these as a light hiking sock and a liner for my ski boots. I purchased one pair a year ago and went back for one more. Also, these seem to be a little more durable than other wool blend socks I've had in the past. The heels and the front of the soles have remained intact. PS. Don't tell anyone but I wore these to my cousins wedding beneath a very expensive rental tux. I danced the night away and they were much more comfortable than a typical dress sock.

This sock is very comfortable and fits snug around your foot. The sock helps wick away moisture and helps keep the stink down. I’ve worn these socks both as a liner and alone – they work great either way.