If you've ever struggled with cold feet — whether you're out in the snow, sitting in a chilly office, or just can't seem to get warm — these are the socks you've been looking for. The Superwarm Heavy Alpaca Socks from Purely Alpaca are built for serious cold, with thick alpaca wool construction that keeps your feet genuinely, noticeably warm. Made in the USA since 2006, they also make a thoughtful, practical gift for anyone who spends time outdoors.
🧦 Features
- 🦙 Premium Alpaca Wool Construction: Alpaca fibre is naturally warmer than sheep's wool, with a hollow core that traps heat without added bulk.
- ⚖️ 50% Heavier Than the Nearest Competitor: Thick sock walls and a soft terry cushion interior for all-day comfort and insulation.
- 💨 Breathable by Design: Air circulates through the fibre structure, keeping feet warm and dry — not sweaty or clammy.
- 🌊 Warm Even When Wet: Alpaca retains heat even in damp conditions, making these reliable in truly extreme weather.
- 🌀 Machine Washable and Dryable: Turn inside out, machine wash cold, tumble dry low. Built to last wash after wash.
- 👢 Tall Crew Height: Fits well in most boots — great for hiking, skiing, snowmobiling, and outdoor work.
- 🇺🇸 Made in the USA: Designed and crafted in America since 2006.
- 🎨 Available In: Cocoa Brown, Black, Grey
- 📐 Materials: Alpaca, Microfiber, Nylon, Lycra
✅ Benefits
- 🥶 Genuinely Warm Feet: Whether you're hiking in winter, working outdoors, or dealing with poor circulation, these socks deliver real warmth where it counts.
- 👣 Comfortable All Day: The terry cushion lining softens every step — no scratching, no bulk, no blisters.
- 🦶 Great for Cold Floors and Cold Offices: Not just for outdoor use — these work brilliantly at home or at a desk in a poorly heated space.
- 🎁 A Gift Worth Giving: Practical, long-lasting, and genuinely useful — a great gift for hikers, skiers, motorcyclists, hunters, or anyone who feels the cold.
- 🧺 Easy Care, Long Life: Unlike many heavy wool socks, these are fully machine washable and designed to hold up over time.
- 🏔️ Tested in Extreme Conditions: These socks have travelled to the Arctic Circle, Antarctica, and the Alaska Iditarod. They're ready for whatever you have planned.
🏔️ Perfect For
- Skiing, snowmobiling, snowshoeing
- Hunting, winter hiking, and camping
- Outdoor work in cold conditions
- Motorcycle riding
- Cold offices and cold floors
- Poor circulation and cold feet
- Dry, cracked winter skin on feet
- Wearing inside boots and heavy footwear
- Viking dry suit SCUBA diving
- Adding warmth to slippers
📐 How to Care For Your Socks
Turn inside out before washing. Machine wash on a gentle or cold cycle. Tumble dry on low. These socks are built to last — proper care keeps them performing wash after wash.
📏 Sizing
Note: sizes below refer to sock sizes, not shoe sizes. Please refer to our sizing chart to find your correct fit.
- Small: Sock size 7–9 (smaller women's and kids' ages 8–12)
- Medium: Sock size 9–11 (most women)
- Large: Sock size 10–13 (most men)
- Extra Large: Sock size 13–15 (men's shoe sizes 12–14)
- XX-Large: Men's shoe size 14+
🔖 Specifications
- Materials: Alpaca, Microfiber, Nylon, Lycra
- Height: Tall crew
- Colours: Cocoa Brown, Black, Grey
- Origin: Made in the USA
- Care: Machine washable and dryable
Your feet have been cold long enough. Pick up a pair of Superwarm Heavy Alpaca Socks today and feel the difference that real alpaca warmth makes.
We have been selling alpaca products since 2002 and learned that a warm, soft, strong, comfortable and MACHINE WASHABLE alpaca sock has been the most frequent customer requested item.
These socks are a blend of excellent quality Alpaca and Microfiber (50%/50% blend) to offer the best of warmth, durability, wash-ability and comfort.
After milling the final mix of the socks is:44% Alpaca, 44% Microfiber, 10% Nylon, 2% Lycra
Why this blend and not 100% alpaca? The characteristics of these socks are the results of years of experience and lots of customer feedback. First, and pretty important is the actual construction of the socks. They are heavily knit, with a strong outer construction and deep pile of terry loops which yields thickness, softness, breathability and of course fantastic comfort and warmth. With their nylon frame, the alpaca is held securely for active use and many washings. The lycra helps the socks gently stay in place without constriction.Why not 80-100% alpaca?
We do sell various socks with that content, but truly, its a waste of expensive alpaca that does not add to the qualities of the socks if durability and function is desired. The mill we use for these (see more below) asserted to us many years ago (around 2006) that using more than 35%-45% alpaca is not really adding anything, except cost, to this kind of sock. So we start with a 50/50% yarn blend of alpaca and microfiber then build the socks around a nylon frame and add a little lycra.
What is Microfiber?
It is a new-ish fiber used in sport socks and clothing. Microfiber fabric is often used for athletic wear, such as cycling jerseys, because the microfiber material wicks moisture (sweat) away from the body, keeping the wearer cool and dry. Microfiber is also very elastic, making it suitable for undergarments. Microfiber has proven to blend very well with and compliment alpaca in socks. It allows for warmth while still offering durability, WASHABILITY and comfort. Microfiber goes perfectly with alpaca.
These Alpaca Socks are made in the USA by a 100 year old hosiery company in Pennsylvania. Also on our website along with our original "Superwarm" socks are the OutdoorAdventure and SlipperBootie socks. All three styles use the same very high quality blend alpaca yarn but are knit differently using different amounts of yarn to provide differing characteristics which our customers have requested.