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  • Smartwool-PHD-Ski-Ultra-Light-Black
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PHD Ski Ultra Light


Product Description

The PhD® Ski Ultra Light was designed after Smartwool's classic Ski Ultra Light, except with a 4-Degree Elite Fit System and Reliawool Technology to create their most comfortable and durable sock yet.


  • PhD®
    Built for Performance in the Highest Degree
  • 4 Degree Elite Fit System
    Uses two elastics for greater stretch and recovery to keep the sock in place

  • Patented ReliaWool?™ technology in high impact areas provides superior durability
  • Mesh ventilation zones provide additional breathability and moisture management
  • Non-cushioned sole and leg for a close fit in tight-fitting performance boots
  • Virtually seamless toe


  • 14" overall height
  • Sock Height: Over the Calf
  • Knit in USA of Imported Yarn: 55% Merino Wool, 41% Nylon, 4% Elastane

Sizing Chart

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