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Smartwool Men's Performance Mountaineer Extra Cushion Socks

$33.95 CAD
  • Product Number: 999502SCC

Venture further and stay warmer with the PhD Outdoor Heavy Crew. Heavy cushioning and the power of Merino help keep your feet warm, dry and comfortable whether you’re out on a multi-day trek, or trudging through the snow. Featuring Indestructawool technology for ultimate durability in high-wear areas, the 4 Degree elite fit system for a dialed fit, and our signature Virtually Seamless toe for extraordinary comfort in any trail shoe.


  • 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
  • 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
  • Heavy Cushion: Heavy impact absorption and warmth for extended excursions
  • Virtually Seamless toe


  • Height: Crew 8.5" 
  • Materials: 68% Merino Wool, 30% Nylon, 2% Elastane
  • Care: Machine wash warm. Wash inside out. Do not bleach. Tumble dry low. Do not iron. Do not dry clean
  • Style Number: SW001073

Size Chart:

Shoe Size: Small Medium Large XLarge
US Men's 3-5.5 6-8.5 9-11.5 12-14.5
EU 34-37 38-41 42-45 46-49
UK 2-4.5 5-7.5 8-10.5 11-13.5

Calf Circumference

(largest part of calf)

11-14.5"(18-26.5 cm) 12.5-16.5"(32-41 cm) 14.5-18"(37-45.5 cm) 16-23"(41-58 cm)