Product Code: 3C110212

  • Charcoal Heather


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SmartWool's Mountaineering Extra Heavy Socks have extra-heavy full-cushioning that keeps your feet warm and dry when you're mountaineering, ice climbing or multi-day backpacking in cold climates. An arch brace holds the sock in place and adds additional support while the flat-knit toe seam keeps you comfortable.

FREE STANDARD UK DELIVERY on all orders 27th - 31st August 2015

FREE RETURNS to any Cotswold Outdoor store

Product Features

  • Fabric: 83% Merino wool, 16% nylon, 1% elastic
  • Flat-knit side panel
  • Full cushioning
  • Flat-knit toe seam
  • A stretch arch and ankle brace to keep the sock in position

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Mountaineering Extra Heavy Sock reviews verified by Reevoo

(9.4 out of 10)
Value for money
Overall rating
Scores 9.4 out of 10 based on 27 reviews
(10 out of 10)


Crowborough Lifestyle
My husband says they are most comfortable socks ever
Reviewer left no comment
Confirmed purchase: 04 August 2015
Published on: 22 August 2015
(9 out of 10)


Uralla, NSW, Australia Expert
Very comfortable in boots with out annoying seams
Cost is very high but worth it
Confirmed purchase: 30 July 2015
Published on: 13 August 2015
(10 out of 10)


Richmond Artist Adventurer
These socks are always a pleasure to ware in winter or in a tent in summer as cosy dry foot ware.
Confirmed purchase: 07 July 2015
Published on: 05 August 2015