Smartwool PhD Running Ultra Light Micro Socks

SmartFit II System
Super Comfortable
Blister Resistant
Better Moisture Control
Better Temperature Control

The Smartwool PhD Running Ultra Light Micro Socks combines merino wool with an improved fit system to give you one of the best running socks available. Ultra light non-cushion sole protects against blisters and abrasion.

Smartwool socks wicks moisture faster, reduce blisters and keeps your feet at a more comfortable temperature. The natural crimp in Smartwool fibers trap air pockets within the fabric, keeping your feet warmer in the winter and cooler in the summer. The natural fiber also greatly reduces bacteria growth and odor build up.

Smartwool's slogan for the PhD sock line is "The Highest Degree in Performance". Smartwool used paper-thin force sensors to measure the pressures athletes' feet endured as they pursued their sports. Then they fine tuned the socks to provide ultra-dense cushioning in the areas where impact was highest and stripped away the cushion that wasn't needed. Smartwool evaluated the mechanics of the athlete's foot and identified critical fit areas so that maximum fit, protection, and minimum weight were achieved.

SmartFit System II
Smartwool's new SmartFit System II uses a four-point banded sport compression system to provide an incredible secure and comfortable fit above and below the heel, under the arch and across the instep.

High Density Impact Zones
High-density cushioning under heel and forefoot protects against shock and abrasion; lower-density cushioning under arch and around Achilles reduces weight without sacrificing fit or support.

Mesh (MVT) Zones
Maximum ventilation in critical areas vent perspiration and heat.

Top
Double ribbed cuff with elastic holds sock up and in place.

Toe
Flat-knit toe seam for increased comfort and durability.

Smartwool socks are guaranteed not to itch and can be repeatedly washed and dried without shrinking.

Made in the USA from the highest quality New Zealand Merino Wool. Content: 62% wool, 36% nylon, 2% elastic.