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🔥 Elevate your base game with heavyweight merino luxury 🧶
This 100% superfine merino wool base layer set for men features heavyweight 320 g/m² fabric with a quarter zip top and matching pants, plus merino hiking socks. Designed for all-day comfort with itch-free softness, it naturally regulates temperature, wicks moisture, and resists odor—perfect for year-round wear, travel, and active lifestyles. Backed by the Merino.tech Promise, it combines durability, easy care, and versatile style for professionals who demand performance and sophistication.







































| ASIN | B0BDZM7N8L |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #113,488 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #82 in Men's Base Layers |
| Brand Name | Merino.tech |
| Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Collection Name | All |
| Color | .320 Black Zip-up |
| Customer Reviews | 4.5 out of 5 stars 216 Reviews |
| Fabric Type | 100% Superfine Merino Wool |
| Fabric type | 100% Superfine Merino Wool |
| Fit Type | Regular |
| Fit to Size Sentiment | Fits True To Size |
| Garment Size Country | United States |
| Global Trade Identification Number | 08062281031342 |
| Import Designation | Imported |
| Item Type Name | Base Layer Set |
| Manufacturer Part Number | MST-250 |
| Material Type | 100% Superfine Merino Wool |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Origin | Imported |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Size | Large |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Modern |
| Style Number | Set |
| Unit Count | 3 Count |
B**L
I measured for my size
I used the measurements the company provided to get my size. I'm 5'9" 160lbs. I bought a small. Fit me perfect. All long johns I've purchased are similar to spandex but not tight. Size small for me fit the same as my others. I can't stress how soft and comfortable these are. These are expensive I know, but these are high quality. I bought the heavy thick ones because I only wear them when I'm outside for long periods in the extreme cold, otherwise I just wear jeans. The free socks are of the same quality as well. Very comfortable. All my work socks are from Darn Tough made from the same material.
D**L
Not sure how they could be better
I bought these for a kayaking trip in the arctic (Svalbard) and they were perfect. I had previously gotten the 1/4 zip mid-weight and I'm not sure how they could be better. They are soft, keep you at just the right temperature and don't keep any odor, even after continuous wearing (sleeping, paddling, hiking, polar bear watch, etc.) for several days. I machine wash on delicate, air dry in the dryer for maybe 30 minutes and then finish drying on a hanger. Worth every penny. Get the charcoal rather than black. It looks awesome.
R**Y
nice quality and looks good
nice quality and keeps me warm. looks good too. male 6 foot 2, about 170 lb - i got size medium.
D**E
It’s warm and comfortable
It fits well and it helps to keep warm. It feels soft and the quality is better than expected. It doesn’t feel heavy and it seems to be quite durable. I’ll be getting one for myself since they are good to have around.
K**G
Hubby approved!!
Bought as Christmas present, husband loves them. He’s a very slim and tall Size M, he loves the Medium Zip 250 in black. The neck zips high and length is perfect. Ordering more!
R**.
Merino wool thermals
Best purchase when it's -8° out
D**K
Heavyweight set very thin.
Very comfortable and fits well. Seems to be very well made and should last for a good while. However, my main complaint is that even though I ordered the heavy weight base layer they are VERY thin. If I didn’t know better I would have thought they were the light weight set.
A**S
Don’t throw in clothes dryer
Don’t put in clothes dryer.. hang or lay flat to dry These are exceptionally warm long Johns!! There’s no sweating while wearing them in the zero degrees weather.. they will last a long time if you take care of them.. and the socks and beanie are great also.. NO sweating on your head or feet!
M**I
Caldo e confortevole ma non troppo resistente
Dopo circa 5 utilizzi intensi si è formato un piccolo buco nei pantaloni e si sono formati piccoli grumi di fibre sulla superficie. A prescindere da questo l'intimo termico acquistato (250 g/sm) riesce a mantenere calore anche in giornate molto fredde. Ha retto giornate di sci con clima a -15° con sopra solo pile e guscio (giacca e sovrapantalone in gore-tex a 3 strati senza imbottitura). Comunque un ottimo prodotto qualità / prezzo.
Y**A
Essential for -15 and lower temperatuers.
bought 350 M. Excellent quality. Soft snug feeling. kept me warm during -25 C in Toronto. plus bonus pair of socks makes it complete set. I am pretty satisfied with the quality of the product.
O**R
Vraiment bien! Très agréable
Très agréable à porter, tient chaud sans avoir de sensation de sur épaisseur, ne sent pas la transpiration même après plusieurs jours. Taille un peu grand peut être.
H**L
Sehr gut
Tolles Material, sehr angenehm zu tragen. Empfehlenswert.
S**L
Huge value here
I used the heaviest weight base layer for late season waterfowl hunting. In my opinion unless something is going to be an outer layer and in view of the animals you are hunting, the colour and Camo pattern do not matter. I was looking for some merino base layers at a reasonable price and these are great for the money. They wick sweat and stay warm even when wet. I can't speak to how they will hold up in the long term but for now they are great. I would recommend getting the zip up top as if you do end up getting too hot out there and start sweating its can really help you cool off faster. Overall a great value product that I would recommend for anyone who needs something to keep them warm and wick sweat away that won't break the bank.
Trustpilot
4 days ago
2 months ago