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FOR THE WORK THAT NEVER ENDS
Now more than ever, we appreciate our friends. The people out there doing their jobs and serving the community. To our factory workers and store associates joining the fight, and everyone on the frontlines working to keep the rest of us healthy and safe, thank you for continuing to inspire us with all you do.
CLOSE
FOR THE WORK THAT NEVER ENDS
Now more than ever, we appreciate our friends. The people out there doing their jobs and serving the community. To our factory workers and store associates joining the fight, and everyone on the frontlines working to keep the rest of us healthy and safe, thank you for continuing to inspire us with all you do.
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Men's Heavyweight Thermal Base Layer Bottom

A comfortable essential done the Carhartt way. These men's heavyweight thermal bottoms are made of the perfect blend of waffle knit polyester and spandex for easy-wearing warmth that wicks sweat and fights odor. These tights give you the range of motion and warmth you need when battling the seemingly unbearable cold weather days.
  • 7.7-ounce, 95% Polyester, 5% Spandex
  • Heavyweight, Force® Base Layer
  • Built with Force FastDry® technology to wick sweat and dry fast
  • Built to move with Rugged Flex® stretch technology
  • Fights Odors
  • Smooth Flatlock seams, Y-split waistband, and contoured front for comfort
  • Strategic seam placement to reduce chafing
  • Model height: 6'2"; Chest size: 40.5"; Wearing size M
  • Imported
WARRANTY_ACCESSORIES

Base Force® Heavyweight Bottom

$44.99 – $55.99

Style #MBL112
COLOR: Shadow Gray


Size: Select Size
Quantity:
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Fit & Technology
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

PRODUCT FEATURES
Men's Heavyweight Thermal Base Layer Bottom
A comfortable essential done the Carhartt way. These men's heavyweight thermal bottoms are made of the perfect blend of waffle knit polyester and spandex for easy-wearing warmth that wicks sweat and fights odor. These tights give you the range of motion and warmth you need when battling the seemingly unbearable cold weather days.
  • 7.7-ounce, 95% Polyester, 5% Spandex
  • Heavyweight, Force® Base Layer
  • Built with Force FastDry® technology to wick sweat and dry fast
  • Built to move with Rugged Flex® stretch technology
  • Fights Odors
  • Smooth Flatlock seams, Y-split waistband, and contoured front for comfort
  • Strategic seam placement to reduce chafing
  • Model height: 6'2"; Chest size: 40.5"; Wearing size M
  • Imported
OUR COMMITMENT

WARRANTY_ACCESSORIES

What People are saying

Review Summary

Average Rating

4.6 of 5.0
Fit
Too Tight
Perfect
Too Loose
Appearance
 
 
Durability
 
 
Quality
 
 
Comfort
 
 
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4.6 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
9
1
0
1
0
Appearance
4.9 / 5
Durability
4.6 / 5
Quality
4.7 / 5
Functionality
4.6 / 5
Fit
Runs Small
 
Runs Large
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Great Base Layer
When working outside in the cold you need to have a great Base Layer. These thermal pants fit true to size. They are super soft and plenty warm. They are moisture wicking which is needed in my line of work. They are flexible, making it easy to move every which way while working. I absolutely love them! Highly recommend for anyone that wears a base layer whether for work or play. Great job Carhartt!

**I received these thermal pants as part be of the Carhartt field testing crew.
User submitted image
User submitted image
March 23, 2020
Jamestown, NY
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Great base layer for cold temps
Reviewing as a field tester for Carhartt. This is an awesome base layer pant for cold temps and winter weather very warming but not restrictive
March 17, 2020
West Haven, CT
Age:
35-44
Gender:
Male
Field Tester:
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
All day everyday!
I recently wrote a review for the matching 1/4 zip shirt and like I stated before I’d buy in a set. They keep you dry and warm all day long and they don’t bind while under regular clothes. It’s nice having the pocket in front as well. Try them out you won’t be sorry.
Winter starter pack
Winter starter pack
March 17, 2020
Saginaw , MI
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
4 / 5
Quality
5 / 5
Functionality
5 / 5
Very Warm, Comfortable Thermal Pants
Received these thermal pants for Carhartt field testing. They strike a nice balance between being very warm, lightweight, and comfortable. Wore under double-front jeans or canvas pants in single-digit temperatures with negative wind chills and my legs stayed warm while moving/working. Their light weight is nice for putting in a pack if it gets too warm while hunting or hiking. They are also comfortable to lounge in in warmer temperatures! Pants are true to size and seem durable, however, I have heard thread stretching when I put them on from time to time (I wear size large and am between a 34-36 waist).
March 12, 2020
WY
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Great base layer if you need to stand around.
This is a very nicely thought out base layer. Even though it's a heavyweight layer it is perfect to use with your unlined pants. I did feel they could be a touch longer. That is why I kept one star.
This review was collected as part of a promotion
March 11, 2020
New York, NY
Age:
35-44
Gender:
Male
Field Tester:
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Warm and comfortable.
I received this set of base layer pants for a Carhartt Crew Filed Test to test its warmth, comfort, and durability in real world working conditions. This is by far the warmest and most comfortable set of base layer pants I have ever worn. I wore them over the winter in Colorado and Wyoming in cold weather, heavy snow, and strong winds. I was warm and comfortable no matter what Mother Nature threw at me. They wick away moisture and move with me all day. I would recommend this base layer for anyone who works outdoors in the winter.
March 11, 2020
Northglenn, CO
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
4 / 5
Quality
5 / 5
Functionality
5 / 5
Another great carhartt item
Had the chance to trial these on a field test, very warm and durable. nice snug fit, plenty of room to flex and move. No need for extra layers with these, wore with Carhartt lined bibs and was very comfortable all day
March 11, 2020
MEDFORD , WI
Age:
45-54
Gender:
Male
Field Tester:
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Really good and very warm comfortable insulated pants.
This review was collected as part of a promotion
February 1, 2020
Barberton, OH
Purchased
5 months ago
Age:
55-64
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Excellent Base Layer for Cold Weather
Bought these to use as an alternative to fleece lined work pants. Much prefer these as it provides more flexibility, yet keeps you warm. They fit well and pair with my canvas work pants. I particularly like the idea that if the weather warms up enough, I can simply take them off, whereas with lined pants, you're stuck unless you keep an additional pair of pants with you. These launder well too. The seams in them are placed well so there's no "tugging" or tightness. To me, they're a great cold weather investment.
January 12, 2020
PISCATAWAY, NJ
Purchased
6 months ago
Age:
55-64
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
4 / 5
Durability
3 / 5
Quality
2 / 5
Functionality
1 / 5
Nothing like the old base for heavyweight cotton
For many years we had purchased the base force heavyweight cotton thermals for my husband who works outside construction in the northeastern states. Those always kept him warm and they were comfortable. We called and were told this was the new replacement so we ordered a pair for him to try. He wore them on a 35 degree day with some wind. He came home from work and told me to throw them away that they were completely useless. He said the wind cut right through them and he was cold all day. This purchase was not Carhartt quality and very disappointing. What a waste of money. Onto to the hunt for thermals that will keep him warm.
December 1, 2019
Topton, PA
Age:
55-64
Gender:
Female
Response from Carhartt
We're sorry to hear this. Please contact us at 1 800 833 3118 if you need assistance.
February 20, 2020
Therese S
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What is the inseam on regular and tall sizes?
A shopper on Nov 17, 2019
BEST ANSWER: The measurement may vary by size. Please contact us with the size you are interested in for further assistance. You can reach us by phone at 800-833-3118 Monday-Friday from 8am-9pm EST and Saturdays 9am-5pm EST, by Live Chat Monday-Friday 9am-12am or Saturday & Sunday 9am-9pm EST or anytime by email at just_ask_us@carhartt.com.

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