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

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

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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
    Tyl******es

    Good warmth, but a bit tighter than expected. Took some time to stretch out. Does the job in cold weather, just wish they were slightly roomier in the toe box.

    Chl******tin

    Really like these socks—warm, soft, and fit great. I wear them skiing and around town when it’s chilly. Only wish they came in more colors. No more [痛点1] cold toes during early morning dog walks! Solid quality for the price.

    Jen*******ald

    As someone who works on a dairy farm in Alberta, I need socks that can handle real cold and still stay fresh. These J.B. Field’s socks knocked out [痛点2] odor and dampness like champs. Wool blend feels thick but not bulky, and they survived endless washes without pilling. My go-to winter sock now!

    Lin******vez

    Really like the warmth and fit, though took a couple wears to fully break in. Great for keeping toes warm during early morning walks with the dog. Solved my issue with flimsy socks that wear out too fast.

    Jam******ter

    As someone always battling [痛点1] icy feet in winter, these socks finally solved the problem. Thick enough to insulate without bunching up in boots. Breathable yet warm, and they hold up great in the wash. Unisex fit works perfectly for both men and women in the family. Will definitely buy more pairs.

    Mich********pson

    These socks are a game-changer for winter hikes! I used to struggle with cold feet even in thick layers, but the 40 Below Crew Socks kept my feet warm down to single digits. They wick moisture really well and haven’t lost shape after weeks of use. Perfect for anyone who spends time outdoors in freezing temps.

    Car******iz

    Solid sock for the cold. Kept my feet warm during a weekend camping trip in Montana where [痛点1] cold feet would’ve ruined the vibe. Only reason I’m not giving 5 stars is they’re a bit tight at the cuff. But warmth? A+.

    De****Hu

    As someone who works outside in the Canadian winters, these socks are exactly what I’ve been looking for. They handle moisture well and don’t get stinky quickly. Finally found a sock that stays put and keeps my feet dry and warm—big win.

    Nin******ks

    I’ve gone through so many socks that claim to be 'ultra-warm' but fail within minutes. These actually deliver. Wore them skiing and my feet stayed toasty all day. Resolved my long-time struggle with cold feet in extreme conditions. Will definitely buy more pairs.

    Mar*******lds

    Solid socks, no complaints. Stay in place all day and don’t smell after heavy use. Perfect for work boots or just lounging when it's cold.

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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.