Wool Thermal Socks For Winter
Green Thermal Socks
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
mens wool socks for boots
Wool Thermal Socks For Winter
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
Mens wool socks
Wool Thermal Socks For Winter Review
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
Black Thermal Socks
Beige Thermal Socks
J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock
Wool Thermal Socks Sizing Chart

J.B. Field's Men's Icelandic "50 Below Ice" Wool Thermal Sock

8516-09

Regular price$25.00
/
Size
Colour
  • 1 Year No Risk Guarantee
  • Made in Canada
  • Made with ethically sourced yarns

This is a heavyweight men's wool sock suitable for harsh winters of up to -50ºC. We recommend wearing a liner sock to help wick away moisture—it will keep your feet smelling fresher, warmer, and blister-free! 

Pre-Shrunk Wool: As a versatile fiber, we only use the finest quality of easy-care wool in our socks. Wool is breathable and excellent at regulating body temperature by keeping your feet dry and wicking away moisture, helping to prevent blisters and control odour. 

Sizes available:
Large (Men's 8–12 Shoe / Women's 9–13 Shoe)

  • Wool Socks: 85% Pre-Shrunk Wool, 15% Nylon
  • Men's wool sock
  • Thermal Socks for harsh winters
  • Suitable for weather up to -50ºC!
  • Cushioned Socks: Full terry cushion for extra warmth and protection
  • Over the calf length
  • Heavyweight: 206 grams(L)
  • Made proudly here in Toronto, Canada!

 Also available with a turndown cuff

Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.

If any of our J.B.Field's socks do not meet your expectations, under our No-Risk Guarantee, we will replace them with ones that do – at no cost for you within 1 year of purchase. For all other brands there is a 30 day return policy.

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Seamless hero videos
Great Sox Danforth Store

What makes us great?

We have a great selection of Canadian made and Canadian owned brands, fast shipping, and local pickup and returns in the GTA. Great quality socks for the whole family with a great return policy!

easy to wear

We offer a unique blend of fibers and construction for all day comfort and protection. Technical blends of fibers and features ensure you stay comfy no matter the activity.

Premium Comfort

Feel and look good with socks designed for specific uses and seasons, with strategically placed cushioning and ethically sourced yarns.

Proudly Canadian

Shop your favourite Canadian made and Canadian owned sock brands. Plus earn rewards, shop our sock of the week and check our clearance sections to save!

GREAT SELECTION

Most of our socks we carry are unisex and typically the only difference is the sizing. We carry a wide range of sizes from XXS - XXL

A Made in Canada Story

Founded in 1877 in Tavistock Ontario, J.B. Field's was origionally set up to manufacture socks for the logging industry. Today it still remains a family owned business focused on making the world's best socks.

What make us special?

We use technical blends of yarns and the latest knitting technology for superior comfort, fit, and performance.

  • 5 stars: 38 (86%)
  • 4 stars: 5 (11%)
  • 3 stars: 1 (2%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Stephen S.

Great Socks

J
Jim

I have circulation issues and find the 50 below socks loose and warm. The socks I've been searching for.

J
Jodi

Great socks, it’s hard to find good heavy wool boots socks these days.

l
lene wojcik

This is a photo of my new pair of J. B. Field's socks next to the pair I bought over 16 years ago. I am a women's US 9 and the one size fits many works well for me, albeit they only fit under my largest winter boots (they are a little big but nice and lofty). Best winter socks I've ever bought and worth every penny.

N
Nate

Use these for work. Best socks I have found and I’ve been looking a long time. Thanks JB

G
Glenn

As I get older I appreciate good work clothing more and more (in my sixties). I work outside in western Canada all winter and good socks are a must. None of the retail stores in my area that carry workwear seem to realize that a knee-high sock compliments a tall boot such as the Dunlop or Viking caulks. I searched out a wool knee-high sock online and the -50 Icelandic caught my eye. The price was very good and the service including shipping was outstanding. The fact that these socks are made in Canada helped with my decision to purchase a couple of pairs. After several weeks of wearing them, I have to say they are everything the manufacturer says they are. I should mention that I wear them as an over-sock somewhat like a liner. They get doubled over above the calf at the top and do not slip down.

C
Cody

Super comfy, they help to keep the snow out and the warmth in.

A
Aryan

Real wool socks. It keeps my feet warm in the winter. Very happy with the product. Definitely recommend it to others which I have.

W
Wayne

Warm and soft ,Amber approved

J
Jack Cacciatore

Very comfortable and warm

A
Anonymous

Très bon produit et chaud

C
Ciara J Pisano

These are my husbands favourite sock, worn with the thin merino military liner. They hold their shape very well and wick moisture away from feet. The only reason I gave four star and not five is because I cannot wear them as I have large calves and the tops are a little tight on me. If you have larger calves, the Icelandic 40below are perfect, still incredibly thick and warm, hold their shape but have enough give at the top.

All around, this line of socks are amazing

O
Otto W.

This are -15C or colder socks! Almost thick enough to use as slippers inside too. Not tight, just right on my foot and calves.

C
Christa W.

So cozy, I wear them as slippers they are so thick!

S
Stephen S.

50 below don't come in Extra Large. So I can't wear them. I send them to my Children who love them for Winter. Now my son bought a pair for his son

J
John L.

great socks

G
Gerhard

Looking forward to winter with this great set of socks!!

A
ALBERT OJALA

During outside activities such as snowmobiling, snow blowing, shovelling snow and ice fishing, my feet stayed warm even when they got a little damp from sweat. Also, the socks are not itchy like other types of wool i have tried. i bought one pair to try them out. Afterwards, i ordered 3 more pairs.

J
Jamie A. Brown

The all around sock for me . I've been enjoying your products for years and will continue to do so .

S
Susan

Obviously these ones are the correct size so they fit amazing and do what they are intended to do which is keep one’s feet warm :)

J
Janice

Wonderful sox and fast delivery.

R
Robert

Nice thick socks. I wear them year round they wear pretty good, usually get about 2 months of use per pair.

D
Darcy

Been buying these sox's since they were $8 bucks a pair best sox's ever for working outside in the winter. I wear them all year long keep the feet nice and soft, don't sweat.

P
Paul

Best Socks Ever

A
Alex

I ice fish and hunt and am always looking for socks to keep my feet without spending a fortune on heated socks and stuff like that. These have been great while sitting in the deer stand; I had them paired with lacrosse 1600 gram boots and even produced a bit of sweat so I’m sure they will be overkill paired with my baffins. They are comfortable and stay nice after washing. My only gripe is they are very tight on the calf but I have large legs so you’ll have that on your bigger jobs.

E
Edna

Husband loves them. They are really warm and not tight.

J
Jamie A. Brown

Exactly as advertised . Re-assuring in today's world .
You have a new loyal customer on file .

T
Tom

I’m an outdoor enthusiast . Ice fishing, sled dogs, winter camping… Pair these with a set of mukluks and you’ll never have cold feet again. I love the history of this company and the products they make. Also pleased to buy products that are not imported!

J
Joe

Too thick for a normal shoe might work in a winter boot or work boot but doesn’t fit in my winter ugg sheep lined winter boots. I use them as slippers around the house in winter

J
James

Very comfortable. Wore them for a day out ice fishing and feet were warm and comfortable all day.