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T4033 unisex boot heavyweight tactical sock in color black with white darn tough signature on forefoot
Best Seller
T4033 unisex boot heavyweight tactical sock in color coyote brown with black darn tough signature on forefoot
Best Seller
Image of T4033 Tactical Boot sock in Coyote Brown calling out all of the features and benefits of the sock
Best Seller
T4033 green tactical socks on foot
Best Seller
T4033 unisex boot heavyweight tactical sock in color foliage green with black darn tough signature on forefoot
Best Seller
T4033 green tactical socks on foot with combat boots
Best Seller
Person wearing T4033 walking around so you can see fit
T4033 unisex boot heavyweight tactical sock in color black with white darn tough signature on forefoot
T4033 unisex boot heavyweight tactical sock in color coyote brown with black darn tough signature on forefoot
Image of T4033 Tactical Boot sock in Coyote Brown calling out all of the features and benefits of the sock
T4033 green tactical socks on foot
T4033 unisex boot heavyweight tactical sock in color foliage green with black darn tough signature on forefoot
T4033 green tactical socks on foot with combat boots
Person wearing T4033 walking around so you can see fit

T4033 Boot Heavyweight Tactical Socks with Full Cushion

$34.00
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Cushioning
Color
Size
  • In stock, ready to ship
  • Inventory on the way
  • Unconditionally Guaranteed for Life
  • Free shipping on orders $50+

Our Extreme Cold Weather/Mountaineering boot sock designed for extreme cold climates or rugged terrain. This is our warmest sock, featuring full terry loop cushioning throughout for maximum warmth. Elastic support at arch. Reinforced heel and toe for increased durability.

USAF Safe to Fly Certified and NAVAIR SOA Approved.

Height: Boot
Weight: Heavyweight
Pair with: Military combat boots, tactical boots, hiking boots
Style Number: T4033
  • Tactical boot socks average 13 in. from heel to cuff - expect them to rise just to the top of a basic 8 in. military combat boot.
  • A performance fit means no slipping, no bunching, no blisters - so you can focus on your mission and not your feet.
  • A military-grade fiber, Merino Wool protects foot health and is ultra-durable in the toughest conditions.
  • Heavyweight socks hold heat and are breathable and padded for full protection in cold weather.
  • Berry Amendment compliant tactical socks are knit with Merino Wool that's raised, sourced, and produced in the USA.
  • We close every toe seam using our True Seamless™ Toe technology for an ultra smooth, undetectable feel.
  • The “still” in Still Made in Vermont, USA is personal. We knit all our socks at our VT-based Mills - we can't imagine it any other way.
  • Unconditionally Guaranteed for Life - if these aren’t the longest lasting socks you’ve ever owned, return them for another pair.
Full Cushion
These full cushion socks are our warmest, most padded Tactical socks. Boot Sock cushion map showing full cushion throughout sock

Machine wash in cold water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean. You can learn more about how to wash merino wool socks here.

Materials: 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex 80% Merino Wool, 18% Nylon, 2% Lycra Spandex
*Fiber percentages of socks may vary slightly.
Darn Tough merino wool tactical socks with an overlaid star and stripes pattern

Berry Amendment Compliant

Durable socks for military boots with a lifetime guarantee, made in the USA. Darn Tough Tactical socks for combat boots meet the procurement and technical requirements of Berry Compliance. Our Merino Wool is raised, sourced, and produced in the USA.

Socks with a lifetime warranty, in a big pileSocks with a lifetime warranty, in a big pile

Unconditionally Guaranteed for Life

Socks knit with uncompromised comfort, durability, and fit.
Our Guarantee

Overall rating: 4.87801 / 5 from 1246 reviews.

AI Generated Review Summary

The T4033 Boot Heavyweight Tactical Socks are highly praised for their exceptional warmth, full cushioning, and durability. Customers appreciate the excellent comfort, fit, and quality, making them ideal for extreme cold weather and rugged terrain. The socks are also certified for safe flying and approved by NAVAIR SOA.

Summary topics

  • Cushioning: 2%
  • Cushioning: 10%
  • Warmth: 2%
  • Weight: 3%
  • Customer Service: 3%

Review topics: [size, fit, colors, support, look, weight, length, price, quality, fabric, design, issues, material, comfort, weather, shoes, style, feel, stretch, shipping, craftsmanship, customer service, construction, service, padding, warmth, height, socks, durability, value].

Review highlights

  • "Great cushion, warmth, and heavy duty quality." — Jim I.
  • "Exactly the right height, stretch, cushion and warmth." — Ralph P.
  • "4022 Socks: These are well-cushioned, offering solid warmth and comfort without feeling bulky." — Jenna R.

Reviews

Great Socks!

"Darn Tough makes some great socks. I have had over 30 pairs in the last two decades. Their warranty is out of this world. These specific socks I wear while in uniform, they perform great in the field and in garrison. I also wear them in my civilian job where work boots are required. They breath, wick sweat and provide ample cushion. I can’t say enough about this brand and their products. Invest in your feet!! You’re on them all day, treat yourself!"

— Nicholas F. (5/5)

Full Cushion Socks

"I love my new full cushion socks. They are comfortable and wear very well. I have had great success with the Darn Tough products. I love them and have several pairs. I have not had any holes come up in my socks like I do with others that are purchased from other manufacturers. Thanks for producing a great product!"

— Tom D. (5/5)

These are great for colder

"These are great for colder weather, as long as you have the room in your boots. Used these is Ranger School in February and had to buy a pair for my son. The color and thickness are great for his job and wearing with inline skates to avoid the chaffing from hours in his skates."

— Raymond S. (5/5)

Darn Tough Vermont Socks are the Best in the World.

"Darn Tough Vermont T4033 Boot Heavyweight Tactical Socks are the Best Comfort, Best Quality, Best Value, Socks in the World. I wear this type of Sock all Year round: Spring, Summer, Autumn, and Winter. This type of Sock is Cool in the Summer, and Warm in the Winter. This type of Sock keeps my feet comfortable and dry all Year round. I have worn small holes in some of my Socks over the Years, and Darn Tough Vermont Replaced my Socks under their Unconditional Guarantee for Life."

— Roger D. (5/5)

The last two pair available

"The last two pair available I had been purchased at the Army Airforce Exchange Service some years ago were XL. This recent pair were Large and they fit perfectly. Also, I paid attention to the washing instructions and will start turning my socks inside out. Most men do not follow instructions!"

— Kirk S. (5/5)

Very well cushioned. Good quality.

"Very well cushioned. Good quality. Perfect as a boot sock in cooler weather or for the extra padding."

— Greg H. (5/5)

Well, they look good and

"Well, they look good and feel good. I mean, I just got them. So I'm on my feet all day, every day, I've had other Marina wool socks that I wear a year around, but the ball of my foot and the heel always wear out, so we'll see how these do. I like how they fit, they fit my feet perfectly. I got a size medium and the heel is not halfway up my Achilles tendon. So that's always good, I'm gonna go back and get some crew socks because I like them that much with a warranty like these anyway. I don't know why anybody Would buy a different brand of sock?"

— Walter L. (4/5)

Just hiked 11. 0 miles in

"Just hiked 11. 0 miles in the Smokey Mountains, feet stay comfortable and dry ,they have got to be the best hiking socks I have ever worn,love the full padded bottom of sock for extra cushion in boots . i hike about every weekend so I have tried a lot of socks . Thanks for making a fantastic sock for hiking. Keith 03/26/2026."

— Keith B. (5/5)

Very comfortable!

"Very thick and comfortable, yet the wool keeps your feet from stinking when its hot. I will definitely be purchasing more for this summer. Best boot sock I have tried, I just wish black was more available due to uniform regulations."

— Wyatt S. (5/5)

Simply Awesome

"I give five stars, height, investment, super-fast shipping, packaging good & good value you cannot ask for more. Thank you! The purchase was super organized. They are good for environment. Top notch!"

— ARAMIS A. (5/5)

Q&A

Do these socks run small? Unsure of the size to purchase. The boot size would be an 11 mens
Hi Mj! We recommend staying with your shoe size for choosing the size sock which would be a size L
When are you getting more heavy duty tactical in stock?
Thank you for reaching out and I apologize that the socks you're looking for are currently out of stock in your size. We are hustling to knit more as we speak and we expect to see those back in stock within the next week or two. Please let us know if you have any questions or if there is anything we can do to assist you! Darn Tough Vermont 877-327-6883 support@darntough.mom