Naturally Sustainable
Machine Wash & Dry
Naturally Anti-Odor
Breathable & Wicking
These midweight crew socks, are ideal for hiking, camping, everyday wear, and more. They are part of the New Hampshire, USA-Made Mountain Heritage Collection, ensuring quality and authenticity. Stay comfortable and supported on your outdoor adventures with these socks.
Fabric
- Fiber Content: 65% Merino Wool, 19% Nylon, 15% Stretch Nylon, 1% Spandex
- Total Easy Care: Machine Wash & Dry
- Wool Source: Australia
- Made in the USA.
Features
- Height: Crew - Sits comfortably at the bottom of the calf. This is the most common sock height.
- Weight: Midweight
- Cushion: Full Insulation - A full terry covers the inside of the sock giving you total coverage for when things start to chill.
- Y-Heel: Y-heel style helps create a perfect pocket for your heel, for a no-slip fit.
- 3 Zone Elastic: Elastic on the arch, ankle, and welt opening help keep your sock in place throughout the day.
- Vented Zones: Venting on the top of the sock lets your feet air out and stay cool
- Heel/Toe Plating: Extra durability on the heel and toe keeps socks long-lasting
- Seamless Toe: Smooth, comfortable finish on the toe
- Wool/Nylon Yarn: Our Mountain Heritage sock collection uses wool/nylon yarn technology, which creates a durable sock with high wool content.
- Weight: 113 grams (Pair) Size Large
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Style #: S75
Uses
- Ideal Seasons: Fall, Winter, Spring
- Activities: Everyday Wear, Hiking, Camping, Fishing, Hunting, Snowsports, Cold Weather Outdoor Work
Care
Washing and Drying Instructions - Learn More
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Machine Wash Cold: Gentle cycle with like colors
- Detergent: Mild or wool-specific
- Tumble Dry: Low heat
- Storage: Place in an airtight container when not in use for long periods of time
- Do NOT Use: Fabric softener or bleach!
Guarantee / Warranty
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30 Day Satisfaction Guarantee - Return Policy
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5 Year Manufacturers Warranty - Learn More
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Excellent Quality - Customer Service
Benefits of Merino Wool
Moisture Wicking
Merino wool is the best fiber to regulate moisture. It does this by absorbing sweat from your skin and releasing it into the air. Whether you're hiking, running, biking, on the job, or just relaxing at home, our wool helps keep you dry and comfortable all day long.
Soft & Comfortable
Merino wool fibers are much finer than traditional wool, creating a luxuriously soft feel that won’t itch or irritate your skin. Comfortable enough for everyday wear and gentle enough for sensitive skin, it’s a natural choice for underwear, base layers and next-to-skin comfort.
Highly Breathable
Merino wool’s unique structure allows air to circulate freely, helping to regulate your body temperature in both hot and cold weather conditions. Whether you're layering up for winter or staying cool in summer, Merino keeps you comfortable by letting your skin breathe.
Anti-Microbial
Merino wool naturally resists odor-causing bacteria, keeping you fresher for longer. No lingering smells, even after extended wear. Perfect for travel, outdoor adventures, and everyday life.
Insulates When Wet
Merino wool can hold up to 30% of its weight in moisture without feeling wet or clammy against the skin. Unlike cotton or synthetic fabrics, it keeps insulating when damp, making it a smart choice for unpredictable weather and high-output activity.
Fire Resistant
Merino wool is naturally fire-resistant and self-extinguishing. It will not melt or stick to your skin like synthetic fabrics. A trusted option for first responders, campfire safety, or any high-heat environment.
UV Protection
Our Merino wool clothing helps protect you from the sun’s harmful rays, with different levels of UPF based on fabric weight:
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Microweight (145 GSM): UPF 20
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Lightweight (170 GSM): UPF 25
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Midweight (245 GSM): UPF 50+
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Heavyweight (400 GSM): UPF 50+
These natural UV-blocking properties make Merino wool ideal for long days or the beach or above treeline.
Renewable and Sustainable
Merino wool is a natural, biodegradable fiber with a low environmental footprint. Grown by Australian Merino sheep and shorn seasonally, it is a renewable material that supports responsible farming practices.
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Socks Made IN NH-USA
- Guaranteed For 5 Years
- 7 Weights | 5 Heights
- Year-Round Performance
- Machine Wash & Dry
Our NH-made socks are crafted from premium Merino wool for year-round performance. Warm without bulk, breathable on the move, and built to last, they’re ready for hiking, work, or everyday wear. Made right here in New Hampshire with quality you can feel. Learn more about our NH-made sock story and buying guide here.
Benefits of Merino Wool
- 5 stars: 59 (82%)
- 4 stars: 13 (18%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
These are as close to my favorite SmartWool PhD socks as I have ever found, after trying many others. The PhD socks do have more elastic in the arch, which helps the socks stay in place and not shift around on my food while hiking, though.I will upload a few pictures of the product info these came with.But that’s JustMe. (I received this product in exchange for an honest review, and that is what I have offered here.)
These socks fit perfectly, made my feet instantly warm, are great quality, & are really soft! Awesome quality that is Made in the USAHighly recommended
I've been mountain biking for over 20 years and have literally tried about every possible type of socks that is out there. I've found merino wool to be the best for drying fast, providing warmth, but also if the merino wool socks are thin they perform quite well in warmer weather as well.The main issue with most wool socks is they are far to thick to fit into most mountain biking shoes. Mountain biking shoes tend to fit pretty close to the foot not allowing much room for thick socks. I really love these socks made by Minus33. They are quite thin which makes them fit perfectly in my cycling shoes.I've worn them several times now in wet, muddy and cold conditions and they kept my feet warm in dry in all cases. The temperate on those days was right around 40F degrees and my feet never got cold. Based on my past experience with merino wool socks, I would say these would be perfect in temperatures ranging from about 25F to about 70F where your feet would stay warm but not overly hot in those warmer temps. This would somewhat depend on the type of shoes you are wearing as well.From a budget standpoint they are about what you normally would pay for merino wool socks of this quality.
I have a number of Minus 33 clothing items and their socks might be my favorites. They are made in the USA, supportive, and made with high end Merino wool which means they are warm but breathable. These socks are lightweight and are simply amazing! Recommend highly.
Update (12/9/21): Ordered size Medium, but on the first fit, feels more like a Small or X-Small. Order up a size or two!Summary: Been using Thorlos for years, mainly the micro crew (or which ever is the one that stops right above your ankle), but I'm wearing a little taller boot (6"), so I wanted a little more padding around the ankle, and these mid-calf are much better than the full height ones.Recommendation: When I first hear about wool socks, I thought how would that work, living in Hawaii. Having done more research, and now curious to see if these wool socks can actually be comfortable, as compared to synthetics, in a warm environment.Pros: Minus33 is a dedicated sock company.Cons: Cost (higher than cheap socks, but you get what you pay for).Conclusion: At $18, rating these 5-stars.
I ordered these right at the end of winter so I was only able to wear them for 1 hike before the weather warmed up too much for a pair of socks like this so my experience with them is limited. Regardless of this these socks performed great on that hike. It was fairly cold and I wore them with a pair of minimalist barefoot shoes that are not insulated at all.I normally just buy regular ordinary socks so I am in no way a sock expert but these socks hug my feet like no other. I wear a size 13 so I ordered XL and they fit perfectly. Definitely the most comfortable socks I have ever worn and they are made in the US. I’m very happy with these socks and look forward to putting them to use next winter
Original review:Made in the USA, comfortableThese Minus33 Merino Wool Clothing Mountain Heritage Lightweight Crew Socks are great! They are made in the USA with domestic and imported yarns, they are soft and cushioned on the bottom, and they have strategically placed bands that are a bit tighter which helps hold the sock in place. I am happy to recommend them! I will write a more in depth review, but I wanted to submit this and pictures of the size chart - something that was missing when I ordered - to help others avoid ordering the wrong size.Review updated April 15, 2021:The Minus33 Merino Wool crew socks are well made, made in the USA using domestic and imported yarn, and they are very very comfortable! I appreciate that they are machine washable (cold water) and dryable (low)!I do wish that Minus33 would post a size chart because I guessed when I I placed an order and they do not fit the intended recipient! Luckily, they fit me (women's size 8 shoe) perfectly so it isn't a complete waste, although I wasn't in need of new socks.I have posted pictures, including the size chart, and I hope it makes your ordering decisions easier.Bottom line, these socks are comfortable, well made in the USA, and will make a nice addition to my hiking gear. I recommend them.
Warm and s9ft
Thank you for taking the time to leave a review for our Merino Wool Socks - Midweight Crew. We're thrilled to hear that you find them soft and warm, as that is exactly what we strive for in our products. We hope they continue to provide you with comfort and warmth for many wears to come. Thank you for choosing our brand.
Perfect, soft, fluffy great fit
Soft, warm and substantial. Well worth the cost.
These socks are soft and warm. They are also substantial and well made. I love them.
I love these socks. They are warm without being densely thick. I wear a pair every day during the winter. Highly recommend.
Very warm and excellent quality; I have already recommended them and will be buying more. Midweight is a bit heavier than I anticipated, but good for use with boots.
These are AMAZING socks! I live in NH and hike/trail run a LOT. Very comfy, warm, and extremely high quality!
Excellent cushion and comfortable taper up the calf
Love these socks. They’re my go to merino wool socks for everything from hiking to soccer!
Thank you for your positive review! We're so happy to hear that our Merino Wool Socks are your go-to for all your activities. We pride ourselves on providing high-quality, versatile socks for our customers. Happy hiking and soccer playing!
Amazing cushion - wore these to a 3 day tradeshow, and a 13 mile hike, both grueling. Breathe great too.
Wow, thank you so much for the amazing review! We’re thrilled to hear your socks kept up with you through both a tough tradeshow and a long hike- that’s exactly what they’re built for. Comfort, cushion, and breathability are key, and we’re glad they delivered for you. Thanks for taking us along on your adventures! -Sierra S
These socks keep your feet dry and comfortable after a long day of walking in boots. I walked over 17 miles on a mountain hike in one day and never had to change out my socks. Feet stayed dry and no blisters. Highly recommend!
Perfect weight for everyday wear at a very good price. Definitely will buy again.
Purchase 1 was the ultra light weight cushioned and 2 was the mid weight. Both excellent quality. My favorite yet are the mid weight. Working construction daily requires the right equipment. These are it.
The weight and tightness of weave is a great insulator for feet and very comfortable.
Franklin,
Thank you for taking the time to leave a review for our Mountain Heritage Midweight Crew Socks. We are delighted to hear that you found them perfect for your needs. We take pride in creating products that provide both warmth and comfort, and we're glad to know that we hit the mark with these socks. Thank you for choosing our brand and we hope to continue providing you with high-quality products in the future.
Warmly,
Steven D

