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Men's, Fitted, Midweight Thermal Bottom

  • 5.3-ounce polyester
  • FastDry® with 37.5™ Technology makes this our fastest drying gear
  • Fights odors
  • Smooth flatlock seams and tagless label enhance comfort
  • Tapered cuffs for warmth and comfort
  • Imported

For over 125 years, Carhartt, Inc. has been committed to offering the finest workwear products and customer service available. We stand behind the quality, craftsmanship, and performance of all our products. We use only the finest materials and apply strict quality control standards to each and every garment and accessory that we sell. Our goal is to ensure your satisfaction with each purchase and provide you the best possible service for years to come.

Since all apparel has an expected service life, this commitment does not cover damage caused by normal wear and tear (including zippers and other hardware), misuse, neglect, or obvious abuse of the garment. Carhartt, Inc. assumes no liability for garments that have had alterations, embroidery, or other ornamentation added to the garment.

Please contact our customer service team for all warranty questions:

Contact Us

Carhartt Base Force Extremes® Cold Weather Bottom

$39.99 – $42.99

Style #102348
COLOR: Black


Fit & Technology
    Force icon
    Base Force
    Base Force was designed to keep you warm enough to handle a 12-hour work day.


    Welcome to the warm world of Carhartt Base Force® Thermals. Available in 4 different weights: Lightweight, Midweight, Heavyweight Synthetic, and Heavyweight Cotton. Base Force was built for those who get up and go when the frozen wind blows. They’re sweat-wicking and stain-busting to help you own the cold and stay warm and dry in tough conditions.

    Field Tested icon
    Field Tested
    Tested and approved by real people in the real world.

    Since 1889, Carhartt has been building best-in-class apparel for the active worker. Our founder, Hamilton Carhartt, spoke to railroad workers on the job as he developed Carhartt’s very first products. Not only have we been making clothes for the worker for over a century, we’ve been talking to our consumers for over a century. In order to make sure our products will continue to serve your needs for the next century, we’ve enlisted an army of hardworking men and women to help us develop a better product and experience. We call these folks "Groundbreakers."

WARRANTY

For over 125 years, Carhartt, Inc. has been committed to offering the finest workwear products and customer service available. We stand behind the quality, craftsmanship, and performance of all our products. We use only the finest materials and apply strict quality control standards to each and every garment and accessory that we sell. Our goal is to ensure your satisfaction with each purchase and provide you the best possible service for years to come.

Since all apparel has an expected service life, this commitment does not cover damage caused by normal wear and tear (including zippers and other hardware), misuse, neglect, or obvious abuse of the garment. Carhartt, Inc. assumes no liability for garments that have had alterations, embroidery, or other ornamentation added to the garment.

Please contact our customer service team for all warranty questions:

Contact Us

What People are saying

Review Summary

Average Rating

4.4 of 5.0
Fit
Too Tight
Perfect
Too Loose
Appearance
 
 
Durability
 
 
Quality
 
 
Comfort
 
 
WRITE A REVIEW

There are no comments
4.4 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
6
3
0
1
0
Appearance
4.8 / 5
Durability
4.8 / 5
Quality
4.6 / 5
Comfort
4.6 / 5
Fit
Runs Small
 
Runs Large
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Quality
5 / 5
Comfort
5 / 5
Very satisfied
Product is great, I’m living in th San Francisco area and I leave early for work, this time of the year is cold so it helps to keep me warm but the real reason to purchase it was work, I work inside a cold storage warehouse 8 to 10 hours 5 days a week, by the end of the day I’m still very comfortable, thanks I will definitely recommend this product
January 30, 2018
Purchased
4 months ago
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Great gear
Great thermals. Fit is good and they are very warm. Very satisfied. Will buy more.
January 19, 2018
Lagrangeville , NY
Age:
55-64
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
THESE BOTTOMS ARE NO WARMER THAN AN EIGHTDOLLAR PAIR FROM WALMART. I THINK THESE BOTTOMS ARE OVER PRICED. I WAS NOT SATSIFIED WITH THESE AT ALL
January 1, 2018
LORE CITY, OH
Purchased
5 months ago
Age:
65+
Gender:
Male
Response from Carhartt
We appreciate your feedback and apologize that you didn't find these as warm as expected. Please feel free to contact Customer Service at 1 800 833 3118 if we can provide any assistance.
January 8, 2018
Therese S Staff
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Best long underwear I've ever had!!!
These things are awesome. They are lightweight,moisture wicking, and very comfortable. Just retired from a pulpmill, and believe me, they will keep you warm.
December 9, 2017
colmbus, MS
Age:
55-64
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Great long underwear
These bottoms are awesome. Different than what I expected but they give you the loose flexibility to be able to move around but they also keep you super toasty which is great. I love them.
December 3, 2017
Davenport, IA
Purchased
6 months ago
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
4 / 5
Comfort
5 / 5
Warm!
These are a great option for an added lightweight layer.
November 14, 2017
Kansas City, MO
Age:
45-54
Gender:
Female
Appearance
3 / 5
Durability
3 / 5
Quality
2 / 5
Comfort
1 / 5
Too itchy
fabric needs to be smoother so it moves under outerwear.
Itchy and scratchy.
January 23, 2017
Dallas, TX
Purchased
1 year ago
Age:
65+
Gender:
Male
Response from Carhartt
Thank you for your comments. We appreciate your feedback and have shared it internally. Please call Customer Service if you need assistance.
January 24, 2017
Therese S Staff
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Not Very Warm
Purchased these for my son who works outside. His position keeps him active all day and he said these didn't keep him warm in high-30's temps. Will buy more of the Super Cold Weather bottoms since these weren't warm enough.
January 5, 2017
Cranston, RI
Age:
20-24
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Comfy Long Johns ! ! !
Very COMFORTABLE ! ! ! Does clump or pinch. Warm .
January 2, 2017
Gualala, CA
Purchased
1 year ago
Age:
55-64
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Very comfortable but if you are below 40 degrees I would recommend something else these to add a little warmth but not a lot.
December 26, 2016
Sand Springs, OK
Purchased
1 year ago
Age:
25-34
Gender:
Male
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 15 answers
Should I use fabric softener on theses when I wash them ?
A shopper on Dec 30, 2017
BEST ANSWER: We would recommend following the care instructions.
Machine wash warm with like colors, Non-chlorine bleach when needed, Tumble dry low remove promptly, Do not use fabric softeners, Do not iron, Do not dry clean.
What are the washing instructions? Couldn’t find any on packaging or label.
A shopper on Dec 3, 2017
BEST ANSWER: Wash cold, do not bleach, and tumble dry medium. Remove promptly.
I'm 5ft. 6in. tall with a 34 waist. Smalls are too tight around my waist yet the inseam on size medium are too long. What size do I purchase?
A shopper on Jan 28, 2017
BEST ANSWER: The inseam for all "regular" sizes is 31." If the waist is the only issue, a medium regular might work.
does the bottoms have working fly?
bobby on Jan 2, 2017
BEST ANSWER: Yes, it does.
What size for someone who is 32/36? Skinny but 6'5".
A shopper on Dec 16, 2016
BEST ANSWER: We recommend a medium. However, we do not offer medium tall. We apologize for the inconvenience.
How Much Cotton Is Used To Make The Bottom?
Cholo on Dec 2, 2016
BEST ANSWER: These do not contain any cotton. The fiber content is 80% Cocona 37.5 polyester, and 20% (non-Cocona) polyester.
What is the inseam length of the tall sizes?
Mike M on Nov 18, 2016
BEST ANSWER: The inseam for the tall sizes is 33 inches.
How do you know your size. I normally wear size 34,36?
A shopper on Nov 15, 2016
BEST ANSWER: We recommend a medium for a 31-34 waist and a large for a 35-38 waist.
Will this product keep my legs warm in extreme cold?
A shopper on Oct 11, 2016
BEST ANSWER: We do not temperature rate our garments because everyone has a different threshold for what they consider to be warm. We offer three different thermal bottoms: lightweight, midweight and heavyweight. Our Lightweight Style 102352 is considered warm. Our Midweight Style 102348 is for cold weather (considered warmer) and our Heavyweight Style 102349 is for super cold weather (considered warmest).
What is the source of this product?
Anna C Staff on Jun 1, 0016
BEST ANSWER: This product is imported.