Icebreaker Women's Mountaineer Expedition Cushion Mid Calf Sock

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The women's-specific Mountaineer Expedition Cushion Mid Calf Sock is a durable, breathable, expedition-weight sock for big climbs and adventures in snowy conditions. Features include a densely cushioned, quick-drying design with a reinforced heel and toe for increased durability, seamless toe closures to prevent blisters, and strategic support and breathe zones for extra comfort.


  • Women's specific fit
  • Expedition weight, fully and densely cushioned mountaineering sock
  • Doubled up Merino cushioning for increased comfort in the heel and metatarsal
  • Breathable mesh zones for ventilation at top of foot
  • Function junction removes stitching where foot meets leg for less bulk
  • Achilles and instep support prevents slipping
  • Seamless toe closure reduces bulk and prevents blisters
  • Reinforced heel and toe for durability and strength
  • Wide welt at the cuff for comfort


Sock Style Crew
Cushion Heavy
Made From 80% Merino wool, 19% nylon, 1% LYCRA®
Technologies Used

Merino wool is super lightweight, soft, moisture-wicking, non-itchy, non-clammy, warm in the cold and cool in the heat, and has a miraculous ability to resist odour. Because it was made in the mountains rather than in a petrochemical laboratory. It's naturally renewable, recyclable and biodegradable.

Icebreaker Sock Collections:

  • Hike and Hike+: These features a range of cushioning densities to suit every tramp/hike
  • Multisport: high performing socks to suit every type of active sport
  • Run: light, breathable socks to enhance running comfort and performance
  • Ski, Ski+ and Snow:technical socks for alpine sports that combine the warmth of merino with high density cushioning
  • Lifestyle: stylish socks that give your feet the softness and comfort they need to feel good all day
  • Hike+, Multisport+, Run+, and Ski+ : these socks all have an anatomical toe box for a unique left and right fit as well as sculptured cushioning to maximise fit and comfort

Machine wash with similar colours. Do not use softeners, do not use bleach. Tumble dry on low, inside out. Exact instructions on the care label.


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