Designed for exactly what the name suggests, Smartwool's Mountaineering Extra Heavy Socks can withstand the rigors of mountains and hard, sharp mountain impact.
The Extra Heavy cushioning on Smartwool's sock is designed to keep your feet warm and comfortable throughout your hike, absorbing the rigours of the trail without causing prolonged damage to your feet.
When hiking hard, the beauty of the Merino Wool construction feels soft against your feet, adding to the comfort element whilst having the ability to wick away excess moisture, leaving you dry without the clammy, sweaty feeling inside.
Smartwool have also created the Mountaineering Extra Heavy Socks with flat knit toe seems, reducing the chance of blisters from occuring.
Care instructions: Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.
The Smartwool story started on a rugged Colorado ski slope with the belief that toes didn’t have to be cold. One simple pair of Merino socks challenged the conventional wisdom and forever changed the way outdoor enthusiasts looked at their feet. It’s not just about the Merino, though. It’s what we do with it that makes Smartwool different. For over 20 years, we’ve been pushing the boundaries of Merino to create smarter, more capable products from head to toe.
| Small | Medium | Large | Extra Large | ||
|---|---|---|---|---|---|
| UK Shoe Size | UK Shoe | 2 - 4.5 | 5 - 7.5 | 8 - 10.5 | 11 - 13.5 |
| EU Shoe | 34 - 37 | 38 - 41 | 42 - 45 | 46 - 49 | |
| US Female Shoe | 4 - 6.5 | 7 - 9.5 | 10 - 12.5 | 13 - 16.5 | |
| US Male Shoe | 3 - 5.5 | 6 - 8.5 | 9 - 11.5 | 12 - 14.5 | |
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Goods are shipped from the UK. Does not include delivery charges, local taxes or import duties, if applicable.
More information on International delivery options
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
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Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
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