| Shoe Size | Men US | Women US | Kids US | Euro | UK |
|---|---|---|---|---|---|
| S | 3-5.5 | 4-6.5 | 3-4.5 | 34-37 | 2-4.5 |
| M | 6-8.5 | 7-9.5 | 5-7 | 38-41 | 5-7.5 |
| L | 9-11.5 | 10-12.5 | - | 42-45 | 8-10.5 |
| XL | 12-14.5 | 13+ | - | 46-49 | 11-13.5 |
Just like it's 3/4 length cousin, this sock means business! Designed to take on whatever you can throw at it, this full-length sock will support even your toughest jobs. Great for tall muck boots on the farm or a day in the woods, wear this sock to get the job done!
Fabric
Washing and Drying Instructions - Learn More
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:
Microweight (145 GSM): UPF 20
Lightweight (170 GSM): UPF 25
Midweight (245 GSM): UPF 50+
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.
These socks are absolutely amazing with my work boots!
These are so comfortable and warm I don't want to take them off!! Thank you
Excellent value for money
We strive to provide high-quality products at affordable prices for our customers! Thank you for choosing our socks and we hope to continue exceeding your expectations in the future.
These socks are absolutely amazing with my work boots!
These are so comfortable and warm I don't want to take them off!! Thank you
Excellent value for money
We strive to provide high-quality products at affordable prices for our customers! Thank you for choosing our socks and we hope to continue exceeding your expectations in the future.
Awesome Socks!! Especially for steel toed boots!!
My wife ordered size Medium based on her size 7.5, and they were way too big. Fortunately I take Medium (mens size 8.5). I ordered her some size Small, which fit. I would say they are true to size, but the chart is off for womens' sizes.
Hi there, thank you for your feedback on our Midweight Workhorse Over the Calf Socks. We apologize for any confusion with the size chart. We appreciate you sharing your experience and we will definitely look into this. We're happy to hear that the size small worked for your wife and that you found the Medium to be true to size. Thank you for choosing our product and for bringing this to our attention. -Minus33
I had to give the mediums to my husband and order the smalls! They are nice and warm and seem well made.
Hi there,
Thank you for your feedback! We're glad to hear that you are enjoying the warmth and quality of our Midweight - Workhorse Over the Calf Socks. We apologize for any inconvenience caused by the sizing. We will pass this information along to our team for future improvements. Thank you for choosing our product!
Best,
Customer Service
We travel full time while working & exploring outdoors in all types of weather. My girls and I love how soft and thick these are. So nice to find socks that actually keep our toes warm. We’re excited to use them this Fall & Winter.
Great socks! I would recommend these
These are such great socks for frigid temperatures. I wear these in the snow and ice and they keep my feet warm and dry. They are really comfortable and cushiony too! Love them!
Thank you for the kind words! We're so glad you're enjoying our socks!
-Minus33
Excellent socks, but after a period of use, knots of the same product began to appear in it, and I remove them with my hands from time to time
Hamad,
Thank you for the feedback and taking the time to leave a review!
-Minus33
Kept me warm but my feet didn't sweat much. They are great..
I used these socks multiple days tracking deer in northern VT. They worked great. I wear a uninsulated pair of rubber boots and they kept my feet warm and dry.
Keegan,
Happy to hear our Minus33 Merino Wool Workhorse Over the Calf Socks helped with tracking deer in northern VT.
Thanks for the great review! Happy Hunting!
-Jeannie T.
This is the best. Goes on easy. Keeps the feet cozy.
These socks are definitely thicker then the midweight socks I bought from Smartwool years ago. These socks are very warm. A great sock for winter!
Steven,
Great to hear you like our socks and they keep you warm.
-M33
Bought these socks for late season hunting. They have been awesome so far. Good at wicking sweat during the walk in so feet stay warm on stand. Over the calf keep them from falling down in boots. I expect them to be very durable like all Minus 33 products I have owned. I wear size 12 and bought large because I do not wear a liner sock under these. If I was going to use a liner I would have sized up
Nathan,
We are pleased to hear that your feet are staying nice and warm wearing your Minus33 Workhorse Socks. Thanks for the great review and keep warm!
_Melinda W.
what % of wool is in these socks?
52% Merino Wool, 35% Polypropylene, 12% Stretch Nylon, 1% Spandex
- Woolmark Quality Standard
- OEKO-TEX Standard 100
- Responsible Wool Standard
- Earth-Conscious Packaging
We re-purpose & package gently worn & factory second base layers into SAR Warming Kits distributed FREE to first responders across the USA and Canada.
- 30-Day Returns/Exchanges
- Free Shipping Over $50
- NH-USA Customer Service
- 2-Year Product Warranty*
We are a 5th-generation family-owned business in New Hampshire with over a century of woolen textile manufacturing expertise. Quality without compromise.
- Woolmark Quality Standard
- OEKO-TEX Standard 100
- Responsible Wool Standard
- Earth-Conscious Packaging
We re-purpose & package gently worn & factory second base layers into SAR Warming Kits distributed FREE to first responders across the USA and Canada.
- 30-Day Returns/Exchanges
- Free Shipping Over $50
- NH-USA Customer Service
- 2-Year Product Warranty*
We are a 5th-generation family-owned business in New Hampshire with over a century of woolen textile manufacturing expertise. Quality without compromise.
