These socks are great. Comfy, wicking, durable, and just awesome overall. On a more positive note, I have yet to see any of these guys pill, big plus!

I am confident that these socks could handle any condition. they're perfect for practically anything that someone would do wearing socks. i use them to run in(track/field), i bike in them, etc. they are soft, comfy, and durable and breathable. they also have little grip sections(the x) that help out. however, contrary to the specs, these aren't really "ultralight". they are just thick enough to provide small cushion but thin enough to have something to do with performance.

I normally wear Coolmax Thor-lo's for running, but I bought some racing shoes and needed a slightly thinner sock than the Thor-lo's. I decided to try these, and they worked out great. These socks stay in place when running, and they keep my feet dry and comfortable. They wash up nicely, although I do recommend air drying them (and wool socks in general).

I prefer the ultra-light version, but these are still nice and light. I've been a Thorlos fan for a long time, but I must admit, I love the feel and performance of these socks while running or just going about my day. They conform to your foot quite well, and they don't make your feet hot. The fabric is comfortable, but sometimes the excess material alongside the short stripes on top of the sock push into my skin to the point where I notice it. I haven't had them very long, so I hope they last.

I have worn the Smartwool Adrenaline socks for a couple years for hiking, work, casual, and dress. They outlast any other socks I've had. The thing I like most about Smartwool is that your feet stay dry because of the wicking action of wool. They also feel cooler. I bought this sock, Smartwool PhD Running Light Micro Sock, after putting on my old cotton micro socks and having my feet feel wet and sweaty. I can't go back to regular socks.

These socks changed the way I thought about socks (as in I never had before).

Super soft, durable, smell resisting, arch-supporting, circulation promoting, multi-day wearing powerhouses.

Its amazing how well your foot temperature is regulated by wool. They are a little warmer than standard socks when just standing, but when activity strikes, there is no contest in their performance.

Picked up running about a year ago and got my first pair of smartwool socks as a gift. After countless races and miles and miles of training runs, these are by far the best socks a runner could ask for. Wonderful cushioning and great for keeping your feet cool and dry.

We got these socks as part of a survival plan for Disney World. We did lots of walking in the hot Florida sun (90+ degrees daily) on black concrete and were hoping not to end up with tons of blisters during the course of our trip. The socks were very comfy, not too hot, and not a blister could be found on any of our feet. Thumbs up!

I own too many pairs of these socks. I use them for trail running, mountain biking, hiking, winter running, and tennis. They are comfortable, they don't slip down, they dry quickly and they look sexy.