Smartwool PhD Outdoor Light Crew Sock

PhD Outdoor Light Crew Sock

Smartwool PhD Outdoor Light Crew Sock is rated 4.8 out of 5 by 194.
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4.8 Star Rating
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The Smartwool PHD Outdoor Light Crew Sock is a durable and moisture wicking merino wool sock that will comfort your feet from the city pavement to the outdoor trails. With indestructawool technology and a 4 degree elite fit system, this Smartwool sock is designed to maximize stretch and comfort all the while keeping your sock securely in place. It features tactfully placed mesh zones that balance the warmth of the sock while providing plenty of ventilation. The crew length sock height and light cushioning is particularly ideal for keeping your feet comfy in a pair of boots. Be smart and gift your feet with a pair of Smartwool socks.

Products on Sale are Discontinued Styles or Colors.

Product Description
Item No.   10318153

FEATURES of the Smartwool PhD Outdoor Light Crew Sock

  • Indestructawool technology features a wool-based, patent-pending yarn and construction method for exceptional durability and comfort
  • 4 Degree elite fit system uses two elastics for greater stretch and recovery to keep the sock in place
  • Mesh zones designed for high-output activities or warmer temperatures provide ventilation
  • Virtually Seamless toe
  • Made in USA

Product Specifications
Features: Made in USA, Moisture Wicking, Merino Wool
Sustainability: Animal Friendly
Ultralight: Yes
Gender: Unisex
Best Use: Outdoor Work and Tactical, Casual
Sock Height: Crew
Sock Cushioning: Light
Product Reviews
Rated 2 out of 5 by from Too Small I have been wearing only wear Smart Wool socks for years, love them and have given them as gifts. I recently bought four pair in size large and have worn and washed two pair. The older PhD Outdoor socks were great and sized correctly! The new ones are way too tight and leave a super tight line at the top of the sock at my calf. I'm 5' 10", 170 lbs. and a size 10 shoe. The size chart shows that the socks go up to a size 11.5 but they don't! The old socks were perfectly sized! I use many other Smart Wool products and love them. When the socks were so good and fit so well why make them smaller than the size chart! I have two pair that I have worn a few times and are completely unusable due to the small size!
Date published: 2017-07-14
Rated 5 out of 5 by from Best Socks East of the Mississippi! These socks are superb! When I first tried them on the PCT I was legitimately amazed at their performance. They are truly the sock to end all other socks. Breathable, comfortable, lightyears more advanced than regular cotton or even the most modern synthetic blends. These socks take wool to an entirely new level, one which I am happily becoming acquainted with. I will definitely be buying more of these in the future. If I could afford to, I would only wear these socks and throw out every cotton sock I own. It's moisture wicking properties are second to non and its warmth to weight ratio is outstanding. Arguably the best socks ever made.
Date published: 2015-01-04
Rated 5 out of 5 by from Reynaud's Syndrome Solved Forget about heating pads/heated soles etc. this sock-used as a liner sock--in conjunction with Smartwool's heaviest red/grey mountaineering crew sock is the antidote to cold feet. Reynaud Syndrome sufferers suffer no more. Wear these two socks but but a shoe 1/2 size larger. I'm buying 7 of these to go with my 7 mountaineering socks. Relax, it doesn't feel bulky and it's not too warm indoor. Have been searching for this 'antidote' to cold feet fir five years.
Date published: 2017-12-22
Rated 5 out of 5 by from Possibly my favorite socks... ever I've used these socks for well over a year now and they still look brand new. I have 2 pair and each have well over 200 miles of walking/running under them. They hug your feet better than anything i've used, they don't slide down your leg (even after using the same pair during a 7 day backcountry elk hunt), and they resist odor very well. I use these socks for running, gym, hiking, military, hunting, you name it. My biggest pro is the durability. I beat the "you know what" out of my feet and usually notice at least minor wear and tear after a year, but these things seem to be almost bullet proof. Highly recommend.
Date published: 2019-12-10
Rated 2 out of 5 by from Too tight I only wear smart wool sox, for all occasions. The style I had bought before had been discontinued so I tried these. They were too tight and left an indentation in my lower leg at the end of the day. I am 6 feet 1 and 230 lbs and I ordered the XL.
Date published: 2016-09-18
Rated 5 out of 5 by from PhD Outdoor, BEST socks ever!!! [This review was collected as part of a promotion.] I've been wearing the PhD Outdoor sock since it first came to market. The light crew is perfect for everyday, especially nice in summer. I wear the medium or heavy for work/hiking/winter sport. Honestly, these are the only socks I own anymore. They hug the foot perfectly, never slip, manage sweat and therefore, stink and as far as an outdoor wool sock goes, they pack small enough to travel with a few extra pair. Only downside, they don't last forever but you'll stretch how long they last by not putting them in the dryer. Nowadays, I always hang dry.
Date published: 2018-01-19
Rated 2 out of 5 by from I won't buy another pair unless they make them bigger Seems like a warm sock but too tight for my size 13 foot.
Date published: 2017-01-08
Rated 5 out of 5 by from Great evolution of the PhD line I was sent a pair as a rewards member out of the blue - thanks Smartwool! I've been wearing the previous generation of light PhD socks everyday for the past few years, and these seem improved over the already indestructible predecessors! The material fits very well, didn't shrink perceptibly, and the fabric seems more "light wool" and less nylon-y than the last version - much better against the skin. They feel and fit great, a real improvement over a good product and worth upgrading. Killer summer sock!
Date published: 2016-07-01
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Size Guide

Smartwool Men's Socks

SIZE Small Medium Large X-Large
US Size 3 - 5.5 6 - 8.5 9 - 11.5 12 - 14.5
Euro Size 34 - 37 38 - 41 42 - 45 48 - 49
UK Size 2 - 4.5 5 - 7.5 8 - 10.5 11 - 13.5