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When the temperature drops and the trail gets gnarly, you need a sock that won’t flinch. The Mountaineering Micro Crew brings heavyweight warmth and serious cushioning — the kind of comfort you’ll be thankful for halfway up a snowbound ridge or during those icy camp mornings. The merino blend delivers natural insulation without overheating, and the fit stays locked in no matter what boots you’re wearing. If your adventures regularly take you into the cold, this is a must-pack piece of kit.

| 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 |
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.