Womens Smartwool PhD Run Ultra Light Micro Socks at Road Runner Sports
Men's & Women's Running, Walking & Jogging Shoes and Clothing at Road Runner Sports w/ Free Shipping!
Best Price Guarantee: Feel Great VIP! ALL Your VIP Benefits apply every day

Find Your Perfect Fit

Find Your Perfect Fit

It's so easy!

Womens Smartwool PhD Run Ultra Light Micro Socks

Women's Smartwool PhD Run Ultra Light Micro

Item #SMT122

Get This Price
   Loading product details ...

Reviews (7)
Need Help?

Product Description:

Women's SMARTWOOL® PHD RUNNING ULTRA LIGHT MICRO :: Get the comfort and wicking benefits of Merino Wool without extra bulk. The light and thin Women's SmartWool® PhD Running Ultra Light Micro sock is designed to keep your feet cozy without over heating. Get extra protection in high impact areas. And don't fuss with stretched out socks, resilient wool springs back into shape wash after wash!

Features & Benefits:

  • New 4 degree Elite Fit System uses two elastics for greater stretch and recovery to keep the sock in place
  • Patent pending ReliaWool Technology in the high impact areas provides the longer lasting protection to keep feet comfortable
  • Low profile and durable virtually seamless toe
  • Alternating 1x1 welt
  • 1.5" overall height
  • 54% Merino Wool/44% nylon/2% Elastane
Product SMT122 Review

I used to Love them


I loved them. I totally swear by them, no painful blisters, they stay put. They are comfortable, I like the colors. I spend the extra $ to have socks that do what I need them to, so I'm not worrying about them. However, It's starting to seem like they wear out faster and faster. The toe part has been wearing out really quickly, and now I've got a bunch of socks with holes in the toe. I don't get it. I'm tempted to take all the ones with the holes back and be like WHAT IS GOING ON HERE. It's hard because I don't like the socks with the compression in the middle, and I don't like my socks to be thick, so it's hard to find a pair of socks that don't have those qualities. I would still recommend them to someone who wants what I want. But am starting to look for socks that don't wear out so quickly.

Abby Quiet

San Diego, CA


I love these!


Not sure why these are marked NEW -- it may be the color selections. I have been wearing these for my runs for over a year and I love them! No sweaty feet, even in my wicked heat of summer. They wick away moisture from splashes and the accidental dip in the puddle. Wash, air dry, and they bounce right back into shape with no shrinkage. I moved away from Wigwam Ironman, which are only a bit thinner and lose shape over time. I have no regrets.

love the heat

Las Vegas, NV


Best socks ever!!


These socks are the best. I am a marathon runner and never get blisters when I wear these. My feet sweat horribly. With these socks even after 20+ miles my feet are dry. The guy at the running store talked me into a pair and ever since this is all I buy. I was so afraid they would be itchy and they are not at all! LOVE THEM!




Ultra thin - AWESOME


I have small feet and have trouble finding socks to fit my feet without extra fabric bunching up inside my shoe. (Running shoe 6.5/casual shoe 5.5). Longest run wearing socks so far has been ten miles. I have worn these socks for one month and really like them. Time will tell how long they last. I ordered 6 pairs.

Chicago Bound



Great socks!


After rubbing several large and painful blisters, I bought these socks on the advice of a fellow runner. They have not prevented blisters, unfortunately. I will continue to wear them with moleskin foam underneath (worked reasonably well, even during my most recent 10K).




Comfortable and good looking to boot!


Very pleased with these socks. Only wished there were more color choices.


Whittier, CA




Compliments the entire outfit I bought...


Chula Vista


Womens Smartwool PhD Run Ultra Light Micro Socks

4.6 7


Watch the Women's Smartwool PhD Run Ultra Light Micro Video!

Your Help Is Here

Shop with confidence knowing your team of Fit Experts is waiting to answer all your questions. You can always find your perfect product and your perfect fit. Your Road Runner Sports Fit Experts will make sure you get exactly what you want and have tons of fun in the process! Give us a call, chat, or email!

Call 800-743-3206 to

  • Get help with your order or finding a product
  • Learn how to find your perfect fit for shoes, apparel and gear based on your feet, body, and training goals
  • Or just to have a great time talking about life, liberty and the pursuit of running!!!
You May Also Like