Mountaineering OTC Heavyweight | Full Cushion | Men's Darn Tough Men's Socks

Darn Tough

Mountaineering OTC Heavyweight | Full Cushion | Men's

£31.95 £39.95

Size:

Medium

Large

Colour: Smoke

Qty:

UK: Free Shipping
on orders £50+
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EU: Free Returns
& No customs fees

The cold weather king

Built for the most brutal conditions, the Mountaineering OTC sock is Darn Tough’s warmest, burliest option — and your best friend when you’re heading deep into winter. With heavyweight merino and full cushioning from toe to calf, it delivers serious insulation without sacrificing breathability. The over-the-calf fit gives extra coverage and protection, especially when worn with big boots — whether you’re mountaineering, snowshoeing, or just braving sub-zero trail days.

FEATURES
MATERIALS
SIZE GUIDE
ECO CREDENTIALS
BRAND VIDEO
THE BRAND

- Heavyweight merino wool for serious warmth
- Full cushioning for long days in tough terrain
- Over-the-calf length for max protection and warmth
- Breathable and moisture-wicking to reduce sweat
- Ideal for cold weather, deep snow, and alpine use
- Made in Vermont, USA with a lifetime guarantee
- 73% Merino Wool
- 25% Nylon
- 2% Lycra Spandex
Sock Size UK Euro Men US

M 7.5-9 41-42 8-9.5

L 9.5-11.5 43-45 10-12

XL 12-14 46-49 12.5-14.5
- Sustainability through longevity: these socks have a lifetime guarantee
- Ethically Sourced Materials - Darn Tough source their Merino Wool from America and around the globe. They work closely with their suppliers to ensure that Darn Tough Vermont receives only sustainably sourced Merino Wool from sheep that are not exposed to the practice of mulesing.
Darn Tough socks are covered by an unconditional lifetime guarantee. If their socks are not the most comfortable, durable and best fitting socks you have ever owned, return them for another pair. It's that simple.

If you do want to return a pair, contact us and we'll get that sorted for you.