Home / J.B. Field's 40 Below Crew Socks - Unisex

J.B. Field's 40 Below Crew Socks - Unisex

(4.6)
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  • Detail

    Fully cushioned winter thermal socks for really cold temperaturesu003c/p>

    • Made of a wool blend for extreme warmth
    • Elasticized arch and ankle keeps sock snug and secure
    • Low-profile toe closure for chafe-free comfort

    Idealfor:Downhillskiing, Backcountryskiing, Snowshoeing

    Fabriccontent:85%merinowool, 15%nylon

    Cushioning:Heelandforefoot

    Cuffheight:Mid-calf

    Thickness:Thick

    Anatomicalfit:No

    Madein:Canada

  • Customer Reviews
    Emi******ter

    I have circulation issues and always struggle with cold feet, especially during long shifts at the clinic. These socks solved that. They’re soft, stay in place, and provide consistent warmth without itching. For anyone dealing with [pain point 3]—poor foot warmth due to medical or environmental factors—this is a must-try.

    Der*******ley

    Finally found socks that don’t wear out after two weeks of yard work. These J.B. Field's socks handle snow shoveling, dog walks in -10°C, and still look brand new. The cushioning is great and they stay put all day. Solved my [痛点1]—cold toes during morning chores—better than any wool blend I've tried.

    Dav******ler

    Really comfortable and warm, great for outdoor work in cold weather. Took them skiing and my feet stayed dry and toasty. Only wish they came in more colors. Solid choice if you’re battling constant cold exposure.

    Ju*****ong

    I bought these for my husband and ended up stealing a pair for myself! So cozy for winter walks or just lounging. They’ve completely eliminated my [痛点3]—damp socks from light perspiration. Breathable yet warm. A solid everyday choice.

    Tyl******es

    Been using these during early morning ice fishing trips. My feet stay dry and warm for hours. Exactly what I needed to fix [痛点3]—moisture buildup in cheap socks. These wick sweat like a pro. Highly recommend for any cold-weather activity.

    Nat******rd

    Good warmth and fit, though took a couple wears to break in. Helps with [痛点2]—socks sliding around in work boots. Not perfect, but better than most I've tried.

    Der******is

    Perfect fit and super durable. I wear them for work in the garage and still look good running errands. No more [痛点2]—slipping inside boots. These grip just right and don’t bunch up.

    Li*****ark

    Comfortable from the first wear—no blisters, no slipping. As someone who walks her dog daily in freezing weather, these solved my [痛点1]—cold, numb feet. Thick but not too tight. Will definitely buy more pairs.

    Emi*******pson

    These socks are a game-changer for winter hikes! I used to struggle with cold feet even in thick boots, but the 40 Below Crew Socks kept my feet warm down to single digits. No more stopping every mile to jump around for circulation. Perfect fit and no slipping inside my boots. Exactly what I needed for those early morning trail runs in upstate New York.

    Emi******ter

    These socks are a game-changer for winter hikes! I used to struggle with cold feet, but these keep me warm even in sub-zero temps. The cushioning is perfect and they stay in place all day. Finally found a sock that solves my [痛点1]—cold toes on long outdoor adventures.

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Customer Reviews

  • I’ve had the Zamberlan 309’s for a month now and have put about 75 km on them. They fit great right out of the box but have been getting even more comfortable every time I hike. I like the lacing system and the ability to adjust the tightness in different parts of the boot. Although they’re fairly new they are definitely waterproof and have good grip. Hopefully they hold up over time.
    Gr*****it
  • One of the best all around boots you can buy. Good for 2 hour hikes or 4 day backpacking trips. Not too stiff, but lots of support.
    Ama*******ots
  • Très confortable. Ok sous la pluie. Belles couleurs.
    yr****y
  • I bought these last month at the tail end of winter. I am 5 ft 7 woman approx 160 lbs. They are a great size and weight for me. I wanted a pair that would be easy to strap on as I have arthritis in my knee. The harness is easily adjustable. The back strap is a little fiddly to connect the hole into the spike and to insert the extra strap into the holder. However that is minor and after a few tries I got the hang of it. Only reason for the 4 instead of stars. Great product and I look forward to many years of use.
    kh*****tfg
  • Sturdy, waterproof, hiking sneaker. Feels like you are floating as you walk.
    iy****tt
  • My wife and I traveled for two months last winter. These were the only shoes/sandals I brought, and they served me well through some of the harshest conditions including the desert outback in Australia, the rain in New Zealand, and several encounters with saltwater... They are the perfect everything sandal/shoe for hot, warm, and moderate climates. When we were traveling, we did lots of walking, hiking, beaching, etc. These sandals were up to the challenge of a good hike, or just recreational walking around town. While they are comfortable and breathe well, They don't easily dry while being worn, and because of the toe cap/footbed design, have a tendency to sometimes trap pebbles or sand, requiring that your remove them to shake it out. Also, after time, they really started to stink and required a through cleaning/bleaching which is strange for me because none of my other shoes ever stink. Overall, an excellent comfortable everything sandal/shoe with a few very minor flaws.
    df*****hk
  • I bought this during the MEC sale. I wear a size 6 women boots and the size small fits my boots. I can't compare to size XS which is what is recommended for my boot size as they didn't have it in the store but my size small works and fits me well so no complaints here. Haven't used it for that long so I can't talk about the longevity but I did use them for winter hiking and they are 100% waterproof and the velcro still works!
    b***gh
  • l love these gaiters. They kept my feet dry in 3 days of continuous rain. I find them easy to adjust and don't budge or slide down as I am a small human. I recommend them to all my friends who want quality gaiters for a modest dollar amount. Would love to see more colours in the future!
    kh****lh
  • Love them! Super comfortable, lots of support, great treads.
    h***ft
  • Vert comfortable right out of the box, excited to see how the soles hold up
    5 out of 5 s************************ight out of
  • I am in my 3rd year of wearing Keen boots and will not buy another brand period. They have always had a great fit and no break period. I wear them everyday at work and for pleasure.
    f***dg
  • Had these a short time but so far they seem pretty nice. Good quality and comfortable. My previous Targhee III’s were splitting at several seems, but these are reputed to be less prone to this.
    vb*****fn
  • I bought my first pair back in 2006 and last year replaced them with new version. Materials are high quality and very durable. We wear them 3 seasons fall/winter/spring when they are needed. Definitely happy with them. Follow sizing chart which works well for me.
    h***h
  • These shoes are very comfortable! So happy with them!!
    h***h
  • Soulier comfortable, moule bien le pied. Resistant
    u***tt
  • I recently bought a pair of these from MEC and have not yet tested them in the field, but I love their hand-made Italian construction and strength, their good Vibram soles, and their general feel and good quality. They fit well, feel supportive enough for most hiking, and are a very good price. Unusually, the tongues in these boots have no seams, but are directly part of the outer boot leather, which is a bonus to not have leaking tongue seams as in most boots, and it's a sign of high-quality design and manufacturing. Zamberlan have been making boots since 1929, almost 100 years. I love these boots.
    Thor*********boots
  • Loved the Targhee III's, they did start to crack after countless miles and several years of abuse, the IV's have addressed this while keeping the same comfort. I was able to take them out of the box and hike a rough 10 mile hoke with np break in.
    yt*****urt
  • Bought these for a trip to Yellowstone and Glacier National payl for light, waterproof hiking needs. Very comfortable through miles of walking and hiking.
    hn*****gjh
  • Bought these for a trip to Yellowstone and Glacier National payl for light, waterproof hiking needs. Very comfortable through miles of walking and hiking.
    gb****j
  • These boots have been great. Only this one small issue with one pair. Keen was great to work with in resolving this issue.
    These b************** great.
  • I’ve had the Zamberlan 309’s for a month now and have put about 75 km on them. They fit great right out of the box but have been getting even more comfortable every time I hike. I like the lacing system and the ability to adjust the tightness in different parts of the boot. Although they’re fairly new they are definitely waterproof and have good grip. Hopefully they hold up over time.
    Gr*****it
  • One of the best all around boots you can buy. Good for 2 hour hikes or 4 day backpacking trips. Not too stiff, but lots of support.
    Ama*******ots
  • Très confortable. Ok sous la pluie. Belles couleurs.
    yr****y
  • I bought these last month at the tail end of winter. I am 5 ft 7 woman approx 160 lbs. They are a great size and weight for me. I wanted a pair that would be easy to strap on as I have arthritis in my knee. The harness is easily adjustable. The back strap is a little fiddly to connect the hole into the spike and to insert the extra strap into the holder. However that is minor and after a few tries I got the hang of it. Only reason for the 4 instead of stars. Great product and I look forward to many years of use.
    kh*****tfg
  • Sturdy, waterproof, hiking sneaker. Feels like you are floating as you walk.
    iy****tt
  • My wife and I traveled for two months last winter. These were the only shoes/sandals I brought, and they served me well through some of the harshest conditions including the desert outback in Australia, the rain in New Zealand, and several encounters with saltwater... They are the perfect everything sandal/shoe for hot, warm, and moderate climates. When we were traveling, we did lots of walking, hiking, beaching, etc. These sandals were up to the challenge of a good hike, or just recreational walking around town. While they are comfortable and breathe well, They don't easily dry while being worn, and because of the toe cap/footbed design, have a tendency to sometimes trap pebbles or sand, requiring that your remove them to shake it out. Also, after time, they really started to stink and required a through cleaning/bleaching which is strange for me because none of my other shoes ever stink. Overall, an excellent comfortable everything sandal/shoe with a few very minor flaws.
    df*****hk
  • I bought this during the MEC sale. I wear a size 6 women boots and the size small fits my boots. I can't compare to size XS which is what is recommended for my boot size as they didn't have it in the store but my size small works and fits me well so no complaints here. Haven't used it for that long so I can't talk about the longevity but I did use them for winter hiking and they are 100% waterproof and the velcro still works!
    b***gh
  • l love these gaiters. They kept my feet dry in 3 days of continuous rain. I find them easy to adjust and don't budge or slide down as I am a small human. I recommend them to all my friends who want quality gaiters for a modest dollar amount. Would love to see more colours in the future!
    kh****lh
  • Love them! Super comfortable, lots of support, great treads.
    h***ft
  • Vert comfortable right out of the box, excited to see how the soles hold up
    5 out of 5 s************************ight out of
  • I am in my 3rd year of wearing Keen boots and will not buy another brand period. They have always had a great fit and no break period. I wear them everyday at work and for pleasure.
    f***dg
  • Had these a short time but so far they seem pretty nice. Good quality and comfortable. My previous Targhee III’s were splitting at several seems, but these are reputed to be less prone to this.
    vb*****fn
  • I bought my first pair back in 2006 and last year replaced them with new version. Materials are high quality and very durable. We wear them 3 seasons fall/winter/spring when they are needed. Definitely happy with them. Follow sizing chart which works well for me.
    h***h
  • These shoes are very comfortable! So happy with them!!
    h***h
  • Soulier comfortable, moule bien le pied. Resistant
    u***tt
  • I recently bought a pair of these from MEC and have not yet tested them in the field, but I love their hand-made Italian construction and strength, their good Vibram soles, and their general feel and good quality. They fit well, feel supportive enough for most hiking, and are a very good price. Unusually, the tongues in these boots have no seams, but are directly part of the outer boot leather, which is a bonus to not have leaking tongue seams as in most boots, and it's a sign of high-quality design and manufacturing. Zamberlan have been making boots since 1929, almost 100 years. I love these boots.
    Thor*********boots
  • Loved the Targhee III's, they did start to crack after countless miles and several years of abuse, the IV's have addressed this while keeping the same comfort. I was able to take them out of the box and hike a rough 10 mile hoke with np break in.
    yt*****urt
  • Bought these for a trip to Yellowstone and Glacier National payl for light, waterproof hiking needs. Very comfortable through miles of walking and hiking.
    hn*****gjh
  • Bought these for a trip to Yellowstone and Glacier National payl for light, waterproof hiking needs. Very comfortable through miles of walking and hiking.
    gb****j
  • These boots have been great. Only this one small issue with one pair. Keen was great to work with in resolving this issue.
    These b************** great.