Smartwool Men's PhD Ski Ultra Light

For the skier who wants the minimum between their foot and boot, the PhD® Ski Ultra Light offers the benefits of Merino in a high-performance fit. Featuring Indestructawool™ technology for long-lasting wear, our 4 Degree™ elite fit system, mesh ventilation zones, and our signature Virtually Seamless™ toe for ultimate comfort in a ski boot, these socks are designed to keep you comfortable from first chair to backcountry escape.


  • PhD® Built for Performance in the Highest Degree
  • 4 Degree™ Elite Fit System for a dialed, performance-oriented fit with flex zone at ankle joint
  • Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
  • Mesh ventilation zones provide optimum moisture management and maximum breathability
  • Multi-Density Cushion, light cushioned shin, non-cushioned heel and toe; ideal for high performance boots
  • Shred Shield™ helps reduce wear from toes
  • Body-mapped mesh zones for added breathability
  • Virtually Seamless™ toe for enhanced comfort
  • 14" Overall Height


Sock Height: Over the Calf
Material: 55% Merino Wool, 42% Nylon, 3% Elastane
Care: Machine Wash Warm, Wash Inside Out. Tumble Dry Low. Do Not Bleach.. Do Not Iron. Do Not Dry Clean.

Ideal For:

Skiing, Winter, Hiking, Snowshoeing, Camping, Style