- Extra-thick 3 x 1 knit with mid-calf design provides extra protection and a snug fit
- Natural merino wool features long, silky fibers for extra warmth and comfort without wool's itchiness
- High-density sole padding cushions against shock, blisters and abrasions; high-density padded insteps and shins protects against lace pressure
- Lycra® spandex arch braces for increased support and comfort
- Rib-knit welt top and Lycra spandex braces above the ankle help keep socks up for a wrinkle-free fit and less chance of blisters
- Flat-knit side panels add breathability and ventilation to keep feet comfortable
- *Discount will be applied when you check out. Offer not valid for sale-price items ending in $._3 or $._9
Made in USA.
| Best use | Mountaineering, Hiking |
|---|---|
| Fabric | 80% merino wool/19% nylon/1% elastic |
| Sock height | Crew |
| Sock cushioning | Heavy cushioning |
| Gender | Unisex |
(50 reviews)
What do you think of this product?
Share your thoughts with the REI community.
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Feb 21, 2016Totally worth it
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Feb 16, 2016comfort when you walkI recently bought these socks for an overseas trip and because of the recent weather we have had, had to use these socks to keep my feet warm. Ah yes, comfort and warmth make my tootsies hap...
Read More I recently bought these socks for an overseas trip and because of the recent weather we have had, had to use these socks to keep my feet warm. Ah yes, comfort and warmth make my tootsies happy. -
Jan 25, 2016Warmest socks ever!My feet are always cold! I bought these socks to go skiing in CO and to my delight my feet never got cold and the temps were in the low teens. I was one happy camper!
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Jan 12, 2016I expected more of you, SmartWool...I guess I'm a bit picky about my socks and I have a favorite brand/model for each activity. I purchased these for mountaineering and ice climbing. The socks are terrible...loose weave, too s...
Read More I guess I'm a bit picky about my socks and I have a favorite brand/model for each activity. I purchased these for mountaineering and ice climbing. The socks are terrible...loose weave, too short, and an old-school Wigwam type of feel. If you want a real mountaineering sock, look to the Darn Tough ones. Those are a true over-the-calf sock with great padding, a tight weave, and they are way warmer. -
Nov 17, 2014Almost there..So, we should start by saying these are the best mountaineering socks currently available. But, the best could be better. First, I believe mountaineering socks should be "over the calf," the...
Read More So, we should start by saying these are the best mountaineering socks currently available. But, the best could be better. First, I believe mountaineering socks should be "over the calf," these fall a few inches short. Second, I have massive calf muscles and these socks are not built strong enough to stay up. Other than those two incredibly important items, these are the best socks I've ever owned. Thicker than anything you've ever seen. Super comfy and blister free wether you hiking 20 miles, climbing mixed terrain, pushing for the summit or just sitting on the porch with some coffee. Fortunately my base layer is tight enough to keep the sock up for the most part. But they still continually manage to slide down. I've entertained the idea of a sock garter, but seriously, what mountaineer wears those? Overall these guys get 3 stars. Please build a taller and stronger sock. -
Sep 10, 2014Fell shortClose, but no cigar. These are nice socks: warm and comfortable. I wish they were better crafted. They fall about 3-4 inches short of being over the calf height, as I expect mountaineering s...
Read More Close, but no cigar. These are nice socks: warm and comfortable. I wish they were better crafted. They fall about 3-4 inches short of being over the calf height, as I expect mountaineering socks to be. And, they are not well crafted enough to stay up on their own otherwise. They fall, and they bunch up at the top of your boots. I am 5'10", average build, boot 12D. I tried the appropriately sized XL. I really wish they were crafted/fit better. They will be nice for lounging around the house, but not for out in the field. -
Jan 30, 2014So warm I forgot I had feetGreat product! In terms of warmth, they hold heat all day. I spent a day on the slopes in Colorado with them and never had any issue. Usually, my feet get cold a few hours into any outdoor a...
Read More Great product! In terms of warmth, they hold heat all day. I spent a day on the slopes in Colorado with them and never had any issue. Usually, my feet get cold a few hours into any outdoor activity in the the winter, but with these I never noticed any creeping coldness. However, with the good comes the bad. The reason I gave them 4 stars was because they fit a bit large. While they are super warm the elastic band at the top that fits around the calf is the only part of the sock that seems to stay formed around your leg. Everything else fits loosely. Although there is this issue, the primary reason for purchasing this sock is warmth and under that criteria it passes. I would recommend this sock. -
Jan 29, 2014warm and comfyI have not used these very often. But they feel great. don't know about durability
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Read More Well padded, warm, seams unbothersome, love these, not my first pair and will not be my last - wear good socks, can be the difference between enjoying a long hike and blisters, soreness, or worse