








🧥 Elevate your base layer game—comfort, style, and performance all in one sleek set!
The Merino.tech Women's Midweight Base Layer Set features 100% superfine 18.5 micron Merino wool at 250 g/m², delivering premium thermal insulation without itch or bulk. This breathable, moisture-wicking set naturally regulates temperature and resists odors, making it ideal for multi-day wear, travel, and everyday layering. Included are free Merino wool hiking socks, adding extra value. Machine washable and backed by a lifetime warranty, this set blends luxury, durability, and sustainable performance for the modern woman on the move.





























| ASIN | B09C4KJ99B |
| ASIN | B09KCQ8T5D |
| Apparel Closure Type | Pull On |
| Best Sellers Rank | #5,109 in Fashion ( See Top 100 in Fashion ) #2 in Women's Thermal Underwear Bottoms #5 in Women's Thermal Underwear Tops |
| Brand Name | Merino.tech |
| Collection Name | Winter |
| Color | .250 Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (669) |
| Customer reviews | 4.4 4.4 out of 5 stars (669) |
| Date First Available | 26 October 2021 |
| Department | womens |
| Fabric Type | 100% Merino Wool |
| Fit Type | Stretch |
| Item Type Name | Base Layer Set |
| Manufacturer | Merino.tech |
| Material Type | Wool |
| Neck Style | Crew Neck |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Size | M |
| Sleeve Type | Long Sleeve |
| Style Name | 250gsm midweight |
| Unit Count | 3 Count |
C**9
I bought this set for a trip to Iceland and wore for 3 consecutive days in cold conditions. Kept me warm even when my trousers on top got wet. Runs slightly big but I prefer this for hiking and layering. I’m 5ft and the leggings run long, easy to roll up though. Quality is excellent and overall it’s good value for money and merino wool is the best for keeping you warm!
M**G
I purchased the Merino Tech 100% merino wool thermal sets (320g, charcoal gray) for both my mother and father, and they absolutely love them. Truly—love them. Before this, I had always sent them synthetic thermal underwear (polyester-type fabrics), which were fine, but after discovering Merino Tech, I realized what a huge difference natural merino wool makes. This is a complete game changer. The fabric is incredibly soft, smooth, and gentle on the skin. My parents immediately commented on how comfortable, warm, and luxurious it feels. It’s not itchy at all—just cozy, breathable, and beautifully made. On top of that, the design is stylish and flattering, which is rare for thermal wear. They look good and feel great wearing them. What impressed me just as much was Merino Tech’s outstanding customer service. I had a discount code that I forgot to apply at checkout (which is totally my fault), and most companies would simply say “sorry, we can’t do anything.” But the Merino Tech team was incredibly kind and generous—they honored the discount after the purchase and refunded the difference. That level of integrity and customer care is rare and deeply appreciated. I also love that merino wool is a natural fiber. It feels healthier, more breathable, and more aligned with the body than synthetic materials. You can genuinely feel the quality. I am so happy I chose Merino Tech for my parents. It was a gift that truly made a difference in their daily comfort, and that means everything to me. I highly, highly recommend Merino Tech to anyone looking for premium, natural, and beautifully made thermal wear.
B**E
Bin begeistert! Nachdem ich mich stundenlang mit Merino Unterwäsche beschäftigt habe, landete ich letztlich bei dieser hier und ich bin mega zufrieden. Sie ist total warm, angenehm auf der Haut und schön lang. Für mich mit 1.80 perfekt. Ich bin sehr schlank und hätte wahrscheinlich von der Breite her auch in eine S gepasst aber ich finde die M passt perfekt und ist nicht zu eng. Und dann gibt’s auch noch Socken dazu! Ich kann die Unterwäsche nur empfehlen!
M**Y
Received it today. If you get the 250 black do not size up, it's true to size. It's soft, not itchy, didn't wash yet, but it's perfect. Great to layer or wear alone, I needed a healthy, breathable fabric and 100% wool fit the bill. The socks that are included and also warm and comfortable.
M**N
No me gustó porque no me puedo poner nada más, no se pega al cuerpo
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