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Made from Merino wool and featuring extra heavy cushioning, the Smartwool Men's Mountaineering Extra Heavy Crew Socks are ideal for hard climbs.

Product code: 111633

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If you want to give your feet the protection, support, padding and comfort they require to see you reach the summit, give these excellent Smartwool Men's Mountaineering Extra Heavy Crew Socks a try. They really are superb.

Created using Merino wool, they wick away moisture quickly and easily - they dry swiftly too after washing - so you can be sure your feet will remain in tip top condition.

They have reinforced soles to help prolong the sock's lifespan and more importantly help cushion your feet against the continual pounding they receive when hiking uphill, climbing or multi-day backpacking.

And to help hold the sock in place there is also an arch brace, and to ensure you remain comfortable there's a flat-knit toe seam.

Walking & Hiking
Fully Cushioned
Quick Dry, Wicking

Delivery & Returns

Delivery and collection options

Click & collect

FREE Click & collect Within 5 working days on orders £30 or over. All other orders charged at just £1.00.

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UK delivery

FREE Standard delivery Within 5 working days on orders £80 or over. All other orders charged at £4.95.

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UK delivery

Next Day delivery Order Up to 8pm for delivery the next day - from £5.95

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International delivery

From £4.99 To over 200 countries worldwide. Some restrictions apply.

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Size guide

Small 3 - 5.5 36 - 39
Medium 6 - 8.5 40 - 43
Large 9 - 11.5 44 - 47
X Large 12+ 48+

Mens Socks size guide

Measuring tips

Take your actual body measurements as they are more accurate than measuring over your clothes or shoes.

Feet: Use a ruler or tape measure to measure your foot (from the heel to the tip of your longest toe) Be sure to measure both feet. Many people have feet of different sizes. Fit to the larger of the two.

Remember, feet can expand over a quarter size during a full day's walk so ensure you get the right fit.


Overall Rating

5.0 stars 5.0 / 5 (based on 6 Reviews)
Write A Review
5 out of 5

warm. high quality. reinforced seams and padded sole. went winter mountain climbing. in -17C never had to think about feet.felt comfortable and warm - not sweaty or hot. it truly is a "smart" sock

5 out of 5

Good quality items, would purchase again

5 out of 5

Great socks

Used them for three years or so & have several pairs now. Good cushioning, wicking and warmth but I wash cold as high wool content.

5 out of 5


Over the years I've wasted money on what was said to be the best socks out there, finally I have found the best socks out there,maximum comfort,warm and sweat free feet, brilliant

5 out of 5


5 out of 5



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