SmartWool PhD Outdoor Ultra Light Micro Sock

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Where to Buy

Manufacturer's Description

Visit SmartWool's PhD Outdoor Ultra Light Micro Sock page.

Retailers' Descriptions

Here's what other sites are saying:

The PhD Outdoor Ultra Light Mini features ReliaWool Technology for improved durability in the heel and toe and the 4-Degree Elite Fit System, to keep the sock in place and giving you all-sport versatility.

- Ramsey Outdoor

Smartwool's PhD Outdoor Ultralight Micro is the smallest and lightest sock, great for a lower rise running shoe.


New SmartWool PhD socks are more advanced than ever! Outdoor Ultra Light Micro men's socks feature innovative new fabric, a more comfortable fit and smart design details that enhance performance.


Unless you're an anomaly, your feet will sweat during activity, so the SmartWool PhD Outdoor Ultra Light Micro Socks are designed to breathe and offer cooling, quick-drying comfort no matter how rigorous your favorite outdoor activity can get.