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โ๏ธ Stay warm, move sleek, and own the outdoors in Smartwool style!
Smartwool Men's Classic Thermal Merino Base Layer Bottoms are crafted from 100% Merino wool in the USA, featuring a slim fit and midweight fabric designed for cold-weather activities. Engineered with flatlock seams and interlock knitting, these base layers provide superior breathability, moisture management, and chafe-free comfort, making them an essential layering piece for hiking, skiing, and outdoor adventures.










| ASIN | B083QDVWTX |
| Age Range Description | Adult |
| Apparel Closure Orientation | Front |
| Apparel Closure Type | Snap |
| Apparel Fabric Stretch | Low Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | outdoor adventure |
| Best Sellers Rank | #128,859 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #43 in Men's Base Layers #49 in Men's Thermal Underwear Bottoms |
| Brand Name | Smartwool |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 641 Reviews |
| Fabric Stretchability | Stretchable |
| Fabric Type | 100% Merino Wool |
| Fit Type | Slim |
| Fit to Size Sentiment | Positive |
| Front Pleat Type | Flat Front |
| Garment Size Country | Vietnam |
| Global Trade Identification Number | 00193392652664 |
| Import Designation | Made in the USA |
| Inseam Length | 21.5 inches |
| Item Length Description | Ankle Length |
| Item Type Name | Men's Merino 250 Baselayer Bottom |
| Item Weight | 9.28 ounces |
| Leg Style | Slim |
| Lining Description | 100% Merino wool |
| Manufacturer | Smartwool |
| Manufacturer Part Number | SW016361001-M |
| Material Type | Wool |
| Model Name | Merino 250 Base Layer Bottoms |
| Number Of Pockets | 5 |
| Number of Items | 1 |
| Occasion Type | hiking |
| Pants Form Type | Leggings |
| Pattern | Solid |
| Pattern Style | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | High Rise |
| Sleeve Length Description | 3/4 Sleeve |
| Sport Type | Multi-Sport |
| Style Name | Merino 250 Base Layer Bottoms |
| Style Number | Smartwool |
| Team Name | Smartwool |
| UPC | 193392652664 |
| Unit Count | 1 Count |
| Waist Size | 33 inches |
| Weave Type | Plain |
| character | Sports |
A**M
Good quality
Good quality and comfortable it keeps me warm in the cold days specially I work outdoors. A bit pricy but I think itโs worth it.
R**E
The feel and warmth
It was a gift. He loved them
T**N
Perfect
Perfect love them
S**Y
Do the job
Work great for outdoor work in very cold temperatures. They are holding up well after many wearing and washings. Would buy again.
T**M
soooo good soooo warm
i've tried base layers from patagonia, arc'teryx, icebreaker. none of them are as warm or as comfortable as the smartwool. very happy to find XS stock on amazon as it is not available anywhere else.
J**J
Get them, but take extra care!
Love them and wanted them for quite some time! Could never justify the price, until winter hunting season. I like how thin, flexible, and warm they are. After my first wash (on cold & delicate) I noticed several holes along the outside leg. This was quite a let down given the wait and price.. I cannot say if I rubbed up against something, & if I did, they were used as an under layer. So not too sure what happened. I could see myself getting another pair as I love pretty much all smartwool products. The warmth and comfort are top notch.
L**G
So far, so great!
I wear these for fishing in cold weather. So far, I have worn once with waders and twice when shore fishing in 38 degrees with strong wind. What a difference! I'm hoping they are durable, as well, and time will tell whether they are ultimately worth the price (admittedly not cheap). They passed the threshold test, however, with flying colors!
T**S
Nice product
Nice and warm replace my Uder Armor with thesed
B**R
warmth and comford
If you like being out in the cold this product is for you. Very warm and comfortable.
Trustpilot
2 weeks ago
2 months ago