Smartwool PhD Mountaineering Sock

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In-stock orders placed before 3pm EST using Ground, 2-Day or Overnight will ship the SAME DAY.

Ship MethodCostBefore 3pm ESTAfter 3pm EST
EconomyFREE*5-10 bus. days5-10 bus. days
Ground$7.952-5 bus. days3-6 bus. days
FreightVariable2-7 bus. days2-7 bus. days
US Mail$7.954-8 bus. days4-8 bus. days
2-Day$22.952 bus. days3 bus. days
ShopRunner ShopRunnerFree2 bus. Days.3 bus days
Overnight$30.951 bus. day2 bus. days

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Product Description Item No.   10200125

FEATURES of the Smartwool PhD Mountaineering Sock

  • New 4Degree 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 the longer lasting protection to keep feet comfortable
  • Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management
  • Flat knit durable toe seam for high burst strength
  • Heavy cushion heel and toe for maximum comfort and protection in the highest impact areas of the sock
  • Flat knit foot and leg with heavy duty yarns for maximum comfort and protection in low volume mountaineering boots
  • 14" overall height

- + Product Specifications
Sock Cushioning: Heavy
Fabric Details: 70% Merino Wool, 28% Nylon, 2% Elastane
Best Use: Mountaineering and Alpine
Sock Height: Knee
Ultralight: Yes


Men's Socks
SIZE Small Medium Large X-Large
US Shoe Size 3 - 5.5 6 - 8.5 9 - 11.5 12 - 14.5
Euro Shoe Size 34 - 37 38 - 41 42 - 45 46 - 49
UK Shoe Size 2 - 4.5 5 - 7.5 8 - 10.5 11 - 13.5
Compression Socks and Sleeves
SIZE Small Medium Large X-Large
US Shoe Size 3 - 5.5 6 - 8.5 9 - 11.5 12 - 14.5
Euro Shoe Size 34 - 37 38 - 41 42 - 45 46 - 49
UK Shoe Size 2 - 4.5 5 - 7.5 8 - 10.5 11 - 13.5
Calf Circumference 11 - 14 1/2" 12 1/2 - 16 1/2" 14 1/2 - 18" 16 - 23"
Knee Warmers
SIZE Small / Medium Large / X-Large
Length 16" 18"
Lower Thigh 16 - 17" 17 1/2 - 18 1/2"
Lower Calf 13 - 14" 14 1/2 - 15 1/2"

How to Measure for Knee Warmers

• Length - the actual garment measurement

• Lower Thigh - measure the full circumference of your thigh, at the point where the top of the warmer will fall

• Lower Calf - measure the full circumference of your calf

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