
3x warmer than wool
Alpaca fiber traps more body heat to keep feet warm in freezing, wet conditions, from first light to last.
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HOLLOW · BOOT SOCKS
The boot sock built for cold, 3x warmer than wool.
Black / Large / Crew
Men 9.5–12 · Women 10–13
Made in USA with imported yarn:
Designed in Wisconsin by outdoor enthusiasts and made in North Carolina.
Wash cold and hang dry. Machine washing and drying tests have shown no damage.
Free US shipping on orders over $79
We have a 99-day money back guarantee! Whether something wasn't quite right or you changed your mind, we've got you covered.








| Size | Small | Medium | Large | XL |
|---|---|---|---|---|
| Men | — | 6–9 | 9.5–12 | 12.5–15 |
| Women | 4–6.5 | 7–9.5 | 10–13 | — |
Between sizes? We recommend sizing up.


Alpaca fiber traps more body heat to keep feet warm in freezing, wet conditions, from first light to last.

Pulls sweat away fast and won't soak it up like wool. Feet stay dry, even in wet boots.

Alpaca fiber traps warmth close while cushioning every step. Cold stays out, comfort stays in.

Bought these socks for my winter trip to Colorado, I usually have issues with my feet sweating so much but not with these socks! Definitely worth the money 10 times over keeping them warm and dry.
Trevor J.

I’ve worn these Boot socks a few times now and they are definitely the warmest socks I’ve ever had without making my feet sweat. They are also very soft and comfortable. No issues in my boots!
Leon W.

These are my 2nd pair that I bought just for our winter ski trips to our cabin in the Sierra Nevada mountains. I really didn't need a 2nd pair because I wear the same pair for the whole trip. They keep my feet warm in cold snowy weather and never smell.
Mike R.

Growing up outdoors, I learned that socks DO matter. I began job working in a freezer warehouse with temps between 0° and -20° F for 10+ hours a day, so I knew I wanted warm and durable for my job. These have not disappointed.
Edward G.
| Feature | Hollow Alpaca | Wool | Cotton |
|---|---|---|---|
| Superior Warmth | ✓ | ✓ | — |
| Temperature Regulating | ✓ | ✓ | — |
| Keeps feet dry | ✓ | — | — |
| Made in usa | ✓ | ✓ | — |
| 99-day guarantee | ✓ | — | — |