Skip to Content>>

 Free US Ground Shipping on Orders $99+ and Free Returns

 Free US Ground Shipping on Orders $99+ and Free Returns

Men's Slightly Fitted, Heavyweight Cotton Thermal Bottom Fights Sweat & Cold Weather

  • Comfortable & soft, 9.5-ounce, 100% cotton knit gives you the most warmth in our heaviest weight layer
  • FastDry® technology wicks away sweat for comfort so you can stay focused on your day
  • Stain Breaker® allows stains to wash out easily
  • Elastic waist for a comfortable custom fit
  • Reinforced stitching on all seams for added durability
  • For a full base layer option, shop the coordinating top here
  • 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® Cotton Super-Cold Weather Bottom

$29.99 – $32.99

Style #100640
COLOR: Natural


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.

    Force icon
    Carhartt Force®
    Keep your cool with sweat-wicking FastDry® technology.

    All Carhartt Force® gear wicks sweat thanks to FastDry® technology. Force also either fights odors, releases stains with Stain Breaker® technology, or both.
    Fast Dry technology has superior wicking action which makes perspiration a memory. The bottom line is that Force works harder, day in and day out, for hard-working men and women, at a price that doesn’t bring out complaints at the kitchen table.

    Fast Dry
    FastDry®

    Superior wicking action makes perspiration a memory

    Stain Breaker
    Stain Breaker®

    Stain fighting fabric stares down heat and grime

    Anti-Odor
    Anti-Odor

    Takes the fight to odor and wins in a technical knockout

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

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

There are no comments
4.3 / 5.0
37 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
24
7
1
2
3
Appearance
4.7 / 5
Durability
4.5 / 5
Quality
4.6 / 5
Comfort
4.4 / 5
Fit
Runs Small
 
Runs Large
Fit
Runs Small
 
Runs Large
Great fit.
Great fit, durable, a little long for me but is still comfortable.
This review was collected as part of a promotion
April 13, 2018
Jacksonville, FL
Purchased
1 month ago
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
I bought a pair of these to keep me warm while working outdoors up here in the Northeast!
This review was collected as part of a promotion
March 18, 2018
Staten Island, NY
Purchased
4 months ago
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
too small
Way too small. I cannot imagine anyone fitting into them they were so ill proportioned. The material itself seems good and well-made, but the sizing is ridiculous.
February 3, 2018
Keeseville, NY
Purchased
4 months ago
Age:
20-24
Gender:
Male
Response from Carhartt
We appreciate your feedback and have shared your input with Product Design. Please contact Customer Service at 1 800 833 3118 if we can be of any further assistance.
February 9, 2018
Therese S Staff
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
awesome underwear !
these underwear are great ! they keep hubby warm in zero degree weather.
February 1, 2018
MI
Purchased
4 months ago
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Good quality
Good quality
January 26, 2018
Detroit , MI
Purchased
4 months ago
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
Thermals
Comfortable fit and made of quality materials.
January 26, 2018
Purchased
4 months ago
Fit
Runs Small
 
Runs Large
Appearance
1 / 5
Durability
1 / 5
Quality
1 / 5
Comfort
1 / 5
Runs small, I will be returning items.
January 21, 2018
Purchased
4 months ago
Response from Carhartt
Thank you for your feedback. Feel free to contact us if we can be of assistance.
January 22, 2018
BrendaL O Staff
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
My husband, who sides houses, will only wear these cotton, very warm, long johns. He would recommend these to anyone. He works all year long. Best he has ever worn. Thank you!! Can not find in any store around Madison, where we live and he works.
January 19, 2018
Madison , WI
Purchased
4 months ago
Age:
65+
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Comfort
5 / 5
These are very comfortable but they are a tad bit long on me. They are still crazy comfortable and warm. They have the comfort of sweatpants with the warmth of thermals. I like them and probably will buy more
January 17, 2018
Pitman, NJ
Purchased
4 months ago
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
4 / 5
Quality
4 / 5
Comfort
4 / 5
My normal pants size is 34WX36L. The length of these LT's is good but the waist is too generous. Should have ordered the medium talls.
January 14, 2018
Pierre, SD
Purchased
4 months ago
Age:
65+
Response from Carhartt
We appreciate your feedback. Please feel free to call Customer Service at 1 800 833 3118 if we can be of any assistance.
January 15, 2018
Therese S Staff
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 18 answers
Do these struggle in the wind?
A shopper on Apr 10, 2018
BEST ANSWER: Most clothes fit loose, so the wind blows through to your skin. These fit tight and hold the warmth in. Also i was very pleased with the quality. Should last many winter's.
I have a 42-44" waist. Which size would be best for me?
A shopper on Mar 5, 2018
BEST ANSWER: The waist in a size Large will extend out as large as size 44. However, the XL will give you a bit more room.
I thought cotton was a no no for thermals because they trap in moisture?
A shopper on Jan 6, 2018
BEST ANSWER: This style has our FastDry technology that wicks away sweat for comfort.
How does the super-cold cotton bottoms compare to the super-cold polyester version in use? This description makes cotton sound the warmest, a polyester comment says poly is warmest, except for the Insulated Yukon. What is warmest for sitting in a chair in a cold room all day?
Jerry F on Dec 24, 2017
Carhartt Base Force Cotton Super-Cold Weather Bottom
Carhartt Base Force Cotton Super-Cold Weather Bottom
Carhartt Base Force Extremes Super-Cold Weather Bottom
Carhartt Base Force Extremes Super-Cold Weather Bottom
BEST ANSWER: I cannot tell the difference
What is the inseam of the large tall base force?
A shopper on Nov 24, 2017
BEST ANSWER: 33 inches.
What is the inseam on the medium?
haley t on Nov 24, 2017
BEST ANSWER: The medium regular inseam is 31 inches.
I bought men's medium tall last year, but can't find anything this time. Do you no longer carry that size?
A shopper on Dec 17, 2016
BEST ANSWER: We apologize, this style is no longer offered in medium tall.
What is the inseam on the large tall?
A shopper on Dec 7, 2016
BEST ANSWER: The tall inseam on this style is 33 inches.
what temperature is it good at?
A shopper on Dec 1, 2016
BEST ANSWER: We do not temperature rate our garments, but we do categorize them as warm, warmer or warmest. This would be considered warmest.
What is the source of this product?
Anna C Staff on Jun 1, 2016
BEST ANSWER: This product is imported.