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    Zero Cushion

Smartwool Run Zero Cushion Pattern Low Ankle Socks

$20.99 CAD
  • Product Number: 0046301M092

Our PhD Run Ultra Light Pattern Micro socks bring together the comfort of Merino with body-mapped mesh zones for added breathability and an Achilles tab to help prevent sock slippage and provide you with a sock that can handle it all. Featuring our 4 Degree elite fit system for a dialed, performance-oriented fit, Indestructawool technology for enhanced durability, and Shred Shield technology to reduce wear from toes, our thinnest running sock helps keep you comfortable in your low-cut running shoes for the long road ahead.


  • 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
  • PhD: Built for Performance in the Highest Degree
  • Shred Shield helps reduce wear from toes
  • Ultra Light Cushion
  • The absolute minimum between you and your shoes.
  • Virtually Seamless Toe for ultimate in-shoe fit and comfort
  • Body-mapped mesh zones for added breathability
  • Achilles tab designed to prevent sock from slipping down into footwear


  • Height: Low Ankle
  • Materials: 46% Merino Wool, 50% Nylon, 4% Elastane
  • Care: Machine Wash Warm, Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean
  • Style Number: SW001403

Size Chart:

Size US Men's US Women's EU UK
Small 3–5.5 4–6.5 34–37 2–4.5
Medium 6–8.5 7–9.5 38–41 5–7.5
Large 9–11.5 10–12.5 42–45 8–10.5
XLarge 12–14.5 N/A 46–49 11–13.5