Skip to Content>>
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.
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.
carhartt work wear logo
We're sorry, there was an issue opting you into Direct Checkout. Please try again from the My Profile screen. If the issue persists, please call 800 833-3118 to speak with a Customer Service representative.
We're sorry, there was an issue opting you into PayPal. Please try again or If the issue persists, please call 800 833-3118 to speak with a Customer Service representative.
Men's Heavyweight Thermal Base Layer Bottom

Anyone who works outside can appreciate the cold-weather chops of this men's heavyweight thermal bottom. Made for extremely cold temperatures, the poly-wool blend keeps you warm and ready to tackle any storm.
  • 6.5-ounce, 80% Polyester, 20% Wool
  • 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 Poly-Wool Bottom

$44.99 – $55.99

Style #MBL121
COLOR: Burnt Olive


Size: Select Size
Quantity:
x
Add to Cart
FIND IN STORE
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

PRODUCT FEATURES
Men's Heavyweight Thermal Base Layer Bottom
Anyone who works outside can appreciate the cold-weather chops of this men's heavyweight thermal bottom. Made for extremely cold temperatures, the poly-wool blend keeps you warm and ready to tackle any storm.
  • 6.5-ounce, 80% Polyester, 20% Wool
  • 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
 
 
WRITE A REVIEW

There are no comments
4.6 / 5.0
41 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
33
4
1
1
2
Appearance
4.8 / 5
Durability
4.8 / 5
Quality
4.7 / 5
Functionality
4.7 / 5
Fit
Runs Small
 
Runs Large
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
The waist is a bit low and the legs are a tad saggy, otherwise, they keep my legs warm.
May 20, 2020
Purchased
3 months ago
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Awesome for cold weather
This review was collected as part of a promotion
May 4, 2020
Purchased
3 months ago
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Best Thermals Ever
These were the best thermals ever. Very warm yet breathable. Didnt work up a sweat in them.
This review was collected as part of a promotion
March 16, 2020
Waldorf, MD
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Best base layer ever.
Great feeling material, perfect rise, great fit. These don't loosen up and sag in the crotch like old school thermals did when they got wet/sweaty. They wick sweat away before you get the cold clammy feeling.
March 16, 2020
Rochester, NY
Age:
45-54
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Best base layer!
I recieved this base layer as a field test. By far the best base layer I've ever had. Its light with a great fit and did its job by keeping me warm while out working in the cold.
March 15, 2020
Georgetown , KY
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Awesome base layer
Great product. Nice fit, can’t even tell your wearing it. Nice a soft material. Stays put, doesn’t move around. Received this item as part of carhartt crew field test.
March 14, 2020
Orion, IL
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
High quality base layer!!
I received the poly-wool crew shirt as part of a Carhartt Crew Field Test. I love the high quality stitching in all Carhartt clothing including this one, it held up really well and is the most durable base layer I've ever worn. The fabric is extremely warm and the fit is great, didnt feel as restrictive as other base layers I've had.
March 13, 2020
Detroit, MI
Age:
25-34
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Hits every mark with 5+stars
I love these base layer pants. They are snug so not to feel to baggy under clothing. I work in freezers on a daily basis and need something light and warm to perform the functions of my job. These have hit every mark and then some especially when I’m in a -10 freezer working and not have a chill at all wish they had these in socks though. I highly recommend these.
March 11, 2020
Orient , OH
Age:
25-34
Gender:
Male
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Perfect
This is a great, comfortable base layer. They are warm and soft super cozy I have even slept in them. I got these as part of the carhartt crew test. I would recommend to any one.
March 11, 2020
New Ulm, MN
Age:
35-44
Gender:
Male
Fit
Runs Small
 
Runs Large
Appearance
5 / 5
Durability
5 / 5
Quality
5 / 5
Functionality
5 / 5
Another awesome product from carhartt
Super comfortable, easy to move in, no chaffing, plenty warm for the coldest days
This review was collected as part of a promotion
March 11, 2020
Yakima, WA
Age:
35-44
Gender:
Male
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

Chat with an Expert

X