Smartwool Womens PhD Run Light Elite Micro Socks

Size Chart
Bright Coral-Ash
Medium Gray
White/Light Gray
Ocean Abyss
Bordeaux-Deep Navy
Deep Navy/Purple Mist
Golden Olive

Smartwool's best fitting, most advanced run socks yet, Smartwool packed years of testing, prototypes, and running smarts into these socks. Featuring Light Elite cushioning in the ball and heel of the foot for ultimate shock absorption with minimal in-shoe volume, women's specific mesh ventilation zones, and a Virtually Seamless toe.


  • Cushion: Light Elite Cushion (targeted cushioning only where you strike, thin sock elsewhere for light, minimalist fit)
  • Height: Micro (1.75" overall height)
  • Women's specific fit; narrower heel and slimmer fit
  • Indestructawool technology for enhanced durability
  • Body-mapped mesh zones for added breathability
  • Blister prevention
  • 4 Degree elite fit system for a dialed, performance-oriented fit
  • Achilles tab designed to prevent the sock from slipping down into footwear
  • Vent Placement
  • Virtually Seamless toe for enhanced comfort
  • 200 Needle Construction for Lightweight Protection
  • Made in the USA


56% Merino Wool, 41% Nylon, 3% Elastane

Sock Height

Micro Height Sock

Sock Cushion

Light Cushion Sock

Customer Reviews

Based on 4 reviews
f bluming (Mercer Island, Washington)
My favorite socks for workouts

I started wearing SmartWool socks about a year ago after only buying cheaper socks before (regular athletic socks, like Adidas, Under Armour, etc.). I wanted good socks that were lower and showed less in my sneakers but ones that wouldn't fall down at all and that would keep my feet warm in the winter and cooler in the spring/summer. These fit the bill! They're the only low profile socks I bought (and I tried a few other high end brands as well) that never fall down. I never get blisters when wearing these and I'm comfortable for all my workouts.

Star R. (Flagstaff, Arizona)
Can’t go wrong with these

Can’t go wrong with these

Leslie R. (Hopkins, Minnesota)
smartwool socks

I love these socks. I wear them all year round. The heavier ones when I walk/run, and the much lighter footlets for everyday in my regular shoes. They keep my feet dry and comfortable. I have a drawer full for various uses. In the winter they are the only way to go.

Customer (Dallas, Texas)
If you give free shipping,

If you give free shipping, I'll order more.