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🧥 Elevate your base layer game—comfort, performance, and style in one sleek set!
The Merino.tech Men’s Thermal Underwear Set features a midweight 250 g/m² 100% superfine Merino wool fabric that delivers unmatched softness, breathability, and natural temperature regulation. Designed for year-round wear, this fitted base layer set includes a long-sleeve top, long johns, and a free pair of Merino wool hiking socks ($21 value). Its moisture-wicking and odor-resistant properties make it perfect for multi-day use, while the itch-free fabric ensures all-day comfort. Ideal for professionals and outdoor enthusiasts alike, this set combines technical performance with effortless care and durability.







































| ASIN | B09T6PTR88 |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Low Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #36,282 in Fashion ( See Top 100 in Fashion ) #20 in Men's Thermal Underwear Sets |
| Brand Name | Merino.tech |
| Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Collection Name | All |
| Color | 250 Cobalt Blue |
| Customer Reviews | 4.2 out of 5 stars 46 Reviews |
| Fabric Type | 100% Superfine Merino Wool |
| Fit Type | fitted |
| Fit to Size Sentiment | True |
| Garment Size Country | United Arab Emirates |
| Import Designation | Imported |
| Included Components | socks |
| Item Type Name | Base Layer Set |
| Manufacturer | Merino.tech |
| Manufacturer Part Number | MST-250 |
| Material Type | 100% Superfine Merino Wool |
| Material composition | 100% Superfine Merino Wool |
| Neck Style | Round Neck |
| Number of Items | 3 |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Size | M |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Modern/Fitted |
| Style Number | MST-250 |
| Unit Count | 3 Count |
A**K
Cómodo y cálido
No es 100% lana. Pero es más cómodo de primera capa, que los conjuntos de sintéticos.
M**D
Excellent!
I bought these with quality in mind and I was not disappointed. They are excellent in every way both warm and comfortable. Also with a free pair of merino wool socks as well.
K**E
Love it
A better wait than the thin option. This one is holding up well but I did purchase a thinner one and it got holes within around 3 months of wear time. I love this blue color and it's vibrant and nice and warm
K**G
Super als Ski-Unterwäsche
ich liebe diese Merino-Unterwäsche! Zum Skifahren nur noch Merino und ich muss sagen, dass die Qualität bisher echt überzeugt. Passform entspricht der Erwartung! Wird bei uns während der Ski-Urlaube von Hand gewaschen und über Nacht raus gelegt und getrocknet. Nach dem Skifahren dann in der Maschine im Schongang gewaschen und zum trocknen rausgelegt.
R**N
Yeah, They''re Warm!
I bought these for a trip to Antarctica, and I can say they were a fantastic addition to my kit. I got the 250 weight, and I was actually was able to cut down on, or even skip the mid layers when we were having an active day. They wicked very well the day I overdressed, and as advertised with merino, never picked up any bad smell. The legs were a bit on the loose side, but that's just added insulation. Don't worry about them not being a big name brand, they do the job just as well as my SmartWool and at a better price.
Trustpilot
5 days ago
2 weeks ago