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Just what the doctor ordered.

The Smartwool PhD Ski Light Sock cuts weight without skimping on comfort or support. This strategically constructed sock uses soft merino wool keep you feeling good whether you're nailing a few pre-work laps or on a week-long tour.

  • Merino wool blended with nylon and elastane offers exceptional temperature regulation, flexibility, and support
  • Mernio wool's natural antimicrobial properties keep these socks fresh even if you skip a few washings
  • Mesh ventilation zones get rid of moist, overheated air
  • SmartWool's 4 Degree Elite Fit System uses two elastics for extra flex and compression
  • Compression tech helps energize your feet and prevent swelling

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SmartWool PhD Ski Light Sock

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Here's what others have to say...

5 5

good for sweaty feet!

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

I have really sweaty feet. it sucks. these keep my feet feeling fairly dry, even on long hikes! they dry fast too. perf for skiing.

5 5

30-day challenge!

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

I wore two pairs of these socks on a 30-day backcountry traverse. They were stinky and dirty... But held up! They are super thin, no holes, great elasticity and I had NO blisters - it was sometimes -30F to 70F and I was happy with them in all conditions... Even soaking wet due to river crossings. These socks are hands down my fav.

3 5

Excellent sock, poor website description

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

This is an excellent sock as other reviewers have noted. What I needed was the Ultra Light version. The thickness of this sock varies - it has extra padding in the toe and heel. The Ultra Light has no extra padding and is of a consistent thickness. I wish Backcountry would describe these physical properties instead of how happy the product will make you.

Unanswered Question

I have large calfs. Are these socks elastic...

I have large calfs. Are these socks elastic enough around the top to allow them to stay up without restricting circulation?

5 5

Great sock for tight boots

  • Familiarity: I've put it through the wringer

I come from the ski racing world, and I like my boots snug and this is my go to sock for that tight fit. The socks fit naturally, and don't bunch up after a long day schussing like other socks. They're warm and the morino wool fights odor transfer (when your other shoes start smelling because you wear the same socks as in your ski know what I'm talking about). Size wise, I wear a 9, which is sometimes an in between size in socks, and the medium fits well.

5 5

Best ski socks I have owned.

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

Great for backcountry touring in all temperatures .

5 5

New ski socks!

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

I have a few pairs of these socks and never want to use a different pair! The feeling of stepping into new smartwool phd ski socks in unbeatable in the sense that it just grips your foot the right way and doesn't promote sweaty feet. Definitely my go to sock for the summer and winter

5 5

My favorite spring socks!

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

I love these light ski socks, they are great for spring skiing! Normally I have issues with smartwool socks not fitting me right but these are spot on! I grabbed the SM and my foot is size 6.0. The merino wool helps makes these socks wick, breathe, and dry quick. Once you go merino, you will never look back! True smartwool quality, very durable and will last you quite a few seasons! I would add them to your cart! :)

5 5

Spring Ski Socks Rock!

Just like the "Medium" weight, these socks are amazing!

I use these in the Spring and for generally warmer days. They wick great and have all of the same articulation abilities as their "heavier" siblings while still maintaining the plush, cushy feel that SmartWool products offer.

SmartWool ski socks make my feet happy!

5 5

Awesome socks

They fit and worked great. Skiing in Colorado with near 0 temperatures and our feet were just fine!

5 5

Great socks!

  • Gender: Female
  • Familiarity: I've used it several times

Fit right, comfortable, stay pot with arch support. Best socks I've had in a long time!
Just the right weight

4 5

Socks you can't live without

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

Once I discovered Smartwool socks for skiing I have never used another brand, these socks are no exception. I will say when I ordered these socks I thought they would be on the thinner side (I prefer Smartwool's super thin socks for my oh-so-tight fitting ski boots), and even though they are stated as light, they're still fairly thick. If you want to go as thin as possible then the ultra light would be the way to go. I wear a size 7 in female shoe size, and I get the medium size which fits perfectly.

5 5

Super Sock

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

I own a couple pair of both these and the Ultralight version. They're great -- warm, not bulky in the least, and have great elasticity to keep them in place. I also recommend sizing up if you're between sizes. I wear an 8.5-9 shoe, and the medium was too snug.

5 5

Best Ski/Snowboard, Hiking & Church Sock

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

I bought 4 pairs of these on SAC last year, and have put them through the ringer. Many miles of hiking and hills of snowboarding later, I can say that they:

- Keep me warm
- Keep my feet dry
- Don't stink
- Breath well
- Are comfortable
- Are fantastic value for the money spent

I even use these for church socks sometimes. The dark color is perfect, and they cushion just right.

I have other bulky wool socks (merino) for hiking and boarding, and they don't even compare. I'm a total fan of these and will buy them again.