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When you ski, you make smart choices regarding your helmet, jacket, and pants. It's time to do the same for your socks. Pull on the SmartWool PhD Ski Graduated Compression Ultra Light Sock and your foot will think you're brilliant. Merino wool, venting mesh zones, and a compression fit make this sock the leading expert on foot comfort while you're making turns.

  • Merino wool blend provides the softness and warmth you expect from SmartWool
  • 4 Degree Elite Fit System utilizes two types of elastic for a stronger stretch that keeps the sock in place
  • ReliaWool technology in high-impact areas provides protection and comfort
  • Strategic mesh zones provide ventilation and moisture management
  • Seamless toe provides comfort in precise-fitting ski boots
  • 20-30mmHg compression rating helps increase blood flow for warmth and recovery

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SmartWool PhD Ski Graduated Compression Ultra Light Sock

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Here's what others have to say...

5 5

The best

  • Familiarity: I've used it several times
  • Fit: True to size

Ive never used a compression sock. I have very picky feet so I stepped my foot game up and got footbeds for my ski boots, I decided if I dropped that kinda money on footbeds a good pair of socks was a no-brainer.

These are amazing. Not only did these help my circulation (ive gotten minor frost bite and have constantly cold toes) but the tightness of the sock virtually eliminates any bunching that can occur while inside the ski boot. Quality is another huge factor. These can be a little bit more of an effort to get on and was worried about ripping a hole in them pulling them on.....not an issue. The build quality is superb and you can tell that these are built to last.

BUY THEM yuh sissy

4 5

Maybe too tight for skiing?

  • Familiarity: I've used it several times
  • Fit: Runs small

I bought these with the hopes of riding in them but I think I got them a size too small as they have been cutting into my calves too much. Nonetheless, I have been wearing them after skiing and when travelling and have made a big difference.

5 5


  • Familiarity: I've used it several times
  • Fit: True to size

I really like the ultralight weight socks. My feet get cold easily and my ski boots never fit well, and conversely, my feet stay warmer and my boots fit better with the thin wool sock. This year I upgraded to the graduated compression; takes some getting used to but I like them better!

5 5

A great lightweight sock

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I have used these socks exclusively for about 3 years. You may ask, why the exclusivity in sock choices? The answer to that is two-fold; I am a picky b*stard when it comes to my feet and they are the best. I have used my oldest pair over 300 days, and they only have one small hole in the heel. What is more incredible though, is that they don't stink like my ski boots. The merino wool does an excellent job fending off my pungent foot stank, and keeping my skin dry. Thin socks are my favorite way to go when skiing, they allow for much better circulation which leads to more warmth. It seems counter-intuitive to say that the thinner the sock the warmer, but in ski boots that is how it works. Blood brings warmth, so letting your blood live wild and free is the way to go. The graduated compression in these socks provides a bit more encouragement for your blood to flow, another bonus for the warmth. Moral of the story; I love them and am pretty confident you will as well. If you're in the market for some new ski socks, this may be your stopping place for a few years, it was for me.

5 5

I'll take ALL of them please

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

Bought these yesterday and wore them today. LOVE them. Used the sizing chart to figure out which socks would work (I'm 6' 1" and play soccer so my calves are a little larger than normal) and the larges fit like a dream. Very warm even though they are light weight and thin. Haven't worn them on the slopes yet but for running and sitting around the house, they have been amazing. Definitely ordering a lot more.

5 5

Not just for skiing.

  • Familiarity: I've put it through the wringer

These are some great socks. They have many of the attributes of wool and are comfortable. I even use them with my dress shoes!

5 5

Favorite Socks

These are my favorite socks I've had, although I have only had 2 pairs.
They're the thinnest you can go without sacrificing much if any warmth, so you get a really intimate feel with your boot (seriously - makes a difference).
The other major upside is the gradual compression, which is GREAT for my swollen ankle that I sprained playing football 8 years back - keeps that garbage in check.
Also, gotta love that blue!

4 5

Great for the Minimalist

  • Gender: Male
  • Familiarity: I've put it through the wringer

Great alternative for the most minimalistic fit from Smartwool. The "light" version will provide a touch more insulation than these for colder days, but these do quite well for most days on the slopes. Like most Smartwool socks, they're super comfy, and it's tough to make 'em stink.