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🧥 Elevate your base game — comfort and performance that never quits!
This 100% superfine merino wool midweight base layer set for men features a quarter zip thermal shirt and matching pants at 250 g/m², designed for superior moisture-wicking, odor resistance, and breathable all-season comfort. Ideal for daily wear, travel, and outdoor activities, it includes a bonus pair of merino wool hiking socks and is backed by the Merino.tech satisfaction promise.

| ASIN | B0F4FG92Z2 |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #167,668 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #191 in Men's Thermal Underwear |
| Brand Name | Merino.tech |
| Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Collection Name | All |
| Color | 250 Charcoal Grey |
| Customer Reviews | 4.5 out of 5 stars 15 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 |
| Import Designation | Imported |
| 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 | 3X-Large |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Modern |
| Style Number | MST-250 |
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.
P**N
My favorite base layer
When I first bought one of Merino Techs items I really didn’t know what to expect. These are very soft and comfortable. I have worn a base layer durning these extreme Ohio winter cold temps. Durning this winter storm of Jan. 2026 I have been able to do many things outdoors and never has the cold bothered me except for my hands and ears. The fit is a little loose but more than tolerable. I now have a couple tees a couple polos 2 base layers with more on the way. I am so happy and confident in these that I also have a couple beanies on the way as well. I almost forgot that I have some of their socks and they are just a comfortable. They seem to be very well stitched and I feel they will be extremely long lasting.
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.
L**Z
Me encanta
Excelente
J**E
Gute Unterwäsche.
Es ist eine gute Unterwäsche, die gut passt, angenehm zu tragen ist und was für mich auch wichtig ist, sie riecht nicht nach dem Schwitzen unangenehm. Ich habe sie zwar bisher nur wenige mal getragen, aber ich bin voll zufrieden damit.
S**Z
Top
Ist genau wie ich es mir vorgestellt habe
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