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🔥 Gear up in Carhartt: Warmth, comfort, and durability that won’t quit!
The Carhartt Men's Force Midweight Synthetic-Merino Wool Blend Base Layer Pant combines natural merino wool warmth with durable synthetic fibers for fast drying and odor resistance. Designed with Force Technology and FastDry moisture management, these fitted base layer pants feature flatlock seams and a brushed elastic waistband for chafe-free comfort during extended wear. Ideal for cold-weather work or outdoor activities, they provide a reliable, breathable thermal foundation that layers seamlessly under your gear.

























| ASIN | B07MCVZ79P |
| Age Range Description | Adult |
| Apparel Closure Orientation | Front |
| Apparel Closure Type | No Closure |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Work/Utility |
| Best Sellers Rank | #183,478 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #40 in Men's Thermal Underwear Bottoms |
| Brand Name | Carhartt |
| Care instructions | Machine Wash |
| Closure type | No Closure |
| Color | Black Heather |
| Customer Reviews | 4.5 out of 5 stars 1,757 Reviews |
| Fabric Stretchability | Stretchable |
| Fabric Type | 80% Polyester, 20% Merino Wool |
| Fabric type | 80% Polyester, 20% Merino Wool |
| Fit Type | Fitted |
| Fit to Size Sentiment | Fits True To Size |
| Front Pleat Type | Flat Front |
| Garment Size Country | United States |
| Global Trade Identification Number | 00061492038520 |
| Import Designation | Imported |
| Item Length Description | Long Length |
| Item Type Name | Base Layer Bottom |
| Item Weight | 7.2 ounces |
| Leg Style | Tapered |
| Manufacturer | Carhartt |
| Manufacturer Part Number | MBL121-027-L |
| Material Type | Merino wool, Polyester Blend |
| Model Name | Force Midweight Synthetic-merino Wool Blend Base Layer Pant |
| Number of Items | 1 |
| Occasion Type | Climbing |
| Origin | Imported |
| Pants Form Type | Leggings |
| Pattern | Solid |
| Pattern Style | Solid |
| Pocket Description | Utility Pocket |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid Rise |
| Seasons | Holiday |
| Sleeve Length Description | Sleeveless |
| Specific Uses For Product | Work activities |
| Sport Type | Multi-Sport |
| Style Name | Force Midweight Synthetic-merino Wool Blend Base Layer Pant |
| Style Number | UM0121M |
| UPC | 061492038520 |
| Unit Count | 1 Count |
| Weave Type | Woven |
| character | Sports |
A**R
Last longer than Merino wool
I recently purchased the Carhartt Men's Force Midweight Synthetic-Wool Blend Base Layer lowers and upper, and I have to say, I’m really impressed with it! After wearing it for about a month, I’m very satisfied with both the quality and comfort. I tested these while hunting and while at work. The blend of synthetic and wool material provides a great balance of warmth and breathability, making it perfect for those cooler days. The fit is spot on, it's snug enough to keep me warm without feeling restrictive, and it holds up really well throughout the day. The fabric is soft against the skin and doesn’t itch like some other wool blends I’ve tried in the past. I also love how moisture-wicking it is. Whether I’m working hard outdoors or just running errands, it keeps me dry and comfortable. Carhartt's reputation for durability definitely holds up with this base layer; it feels built to last. I haven't noticed any pilling or wear even after a month of consistent use, which is a huge plus. I’m looking forward to seeing how it holds up over the long term, but so far, it's been an excellent purchase. Highly recommend it for anyone looking for a high-quality, comfortable base layer that can handle whatever you throw at it.
D**K
Very impressed
5’10, 165lbs I ordered a small and medium due to fitting within the smedium size. I typically wear a medium in Carhartt products and decided to just try them both out to see which one fit better. The small fits well with only one tight spot around the waist band. It’s not enough to cause any issue while carrying a pack during hunting season. The medium also fit well just a little looser. If you properly layer you clothes these work great! If you plan to do activities that cause sweating or getting wet these still work well but there are better options. I typically wear the classic full polyester base layer when I know I’ll be moving a lot, out in the rain, or moving through bodies of water. Being 81/19 polyester/wool blend it’s dries way faster than straight wool. If you’re looking for a good thermal these will do the trick. Reading other comments I’d stress this is just a base layer that needs additional layers to stay properly warm (wearing them alone will not keep you warm).
B**S
It's a gift
And it's a gift worth giving, as Carhartt makes a good product on everything. He wears Carhartt everything as it's his 'go to.' While there are less expensive long underwear for base layers, the fact that Carhartt has 19% wool in them is what sold me. There is nothing at all like wool to retain heat - no fancy "fabrics" of any sort - and that these are also washable/dryable is amazing. He will be happy I am sure.
J**I
Another good Carhartt product
I'm 5'11" 1/2 in. 152lbs. 31-32in waist and medium fits true for me. A good mid-weight baselayer, well made and should last for yrs to come. I have washed these once and had very little shrinkage. I have many pcs. of Carhartt clothing and at todays prices this is a good value. My one con is the wool is only on one panel, frt/back I can't remember now, thats not a dealer breaker for me.
P**K
Works great!
I got this product because I am constantly outside for work in the winter. I have had it for 3 years and it still feels comfortable, doesn’t have any holes so it’s durable. It functions great in keeping me warm, but is breathable enough when moving around to not get too how. I have worn it under my putter coat when offshore fishing during the winter as well as kept me warm while up in the mountains material is great, durable, and thick enough to keep warm but thin enough to not overheat. Glad I spent the money on this and looks good too!
S**R
These are nice...
I like 'em. They fit well, are very comfortable, and aren't so heavy that you can only wear them in extreme cold, which it rarely gets around my neck of the woods. I pronounce them keepers. A little pricey at full price but if I can catch them on sale, like I did with these, I will likely get them in the other two colors as well. You just have to keep an eye out for the deals.
K**S
Husband loves them
My husband and I live in Maine and he is a carpenter so it’s important he stay warm working the long days of winter. These were a game changer for him!! They keep him warm , durable and super comfortable. Easy to wash / dry. Def recommend
T**D
Medium too tight for a 32" waist, No warmer than less expensive long underwear brands.
Medium has a uncomfortably tight waste band, the rest is loose fitting and no elastic to keep the ankles from riding up. They do not seem any warmer than the cheaper brands that cost about 1/3 and fit better. I expected more out of a "Carhartt" I am sure the fit probably fits someone out there better than me, but the "Heavyweight" apparently does not mean it keeps you warmer in colder weather than the more economical brands. I made about 10 cuts with scissers 1/2 way down the waste band to try to loosen the fit, but still too tight.
J**E
Great quality, comfortable
Living in Canada, be it for the cold, under my work pants, knee pads or even motorcycle pants, I wear base layers more than half the year! I'm very pleased by those, always looking for a better, still have not found my ideal, this one is promising, time will tell!
J**L
Buen producto
Cómodo , ideal para climas fríos
C**N
So warm!
Super warm. Wash and wear well, so far! True to size and made well!
B**N
Good stuff
My son loved them
R**R
Nice product
Although I thought they would be a little too light duty, they performed well during our last bought of could weather.
Trustpilot
1 month ago
1 month ago