












🔥 Elevate your base layer game with Merino.tech – where comfort meets unstoppable performance!
The Merino.tech Men's Merino Wool Base Layer offers premium 100% superfine Merino wool in lightweight, midweight, and heavyweight options, designed for superior moisture-wicking, odor resistance, and natural temperature regulation. Each purchase includes a pair of premium Merino wool socks, making it a complete layering solution perfect for year-round wear, backed by a lifetime warranty and easy-care instructions.





























| ASIN | B0G3QZJDW6 |
| Best Sellers Rank | #1,473 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #4 in Men's Base Layers |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,218) |
| Date First Available | November 24, 2025 |
| Department | mens |
| Package Dimensions | 10 x 9 x 0.7 inches; 4.8 ounces |
B**H
Great Fit and Comfortable Fabric
Soft and fits well. Very nice and warm material.
S**K
Good value
The quality is great. It fit perfectly and is warm and comfortable.
L**B
Merino wool baselayer 250
Size fits perfectly. Quality is great the fine attention to detail in the packing and information is greatly appreciated instructions for care of these base layers clear and concise. The comfort of this merino wool is not itchy or scratchy it works well for me in minus degree temps With just coveralls over top. Very pleased with production sure you will be too. I am a 32 waist I wear a medium pant. I am a 42-44 top so top is a large.
S**F
Overall, I'm really happy.
I've been wearing this heavyweight merino wool zip sweater and it's been awesome—especially when that unexpected snowstorm hit. The 100% superfine 17.5-micron merino wool is super soft, never itchy, and doesn’t feel heavy or bulky, even after a full day out. The warmth is impressive, and I love how the wool's moisture-wicking keeps me dry and comfy no matter the conditions. The fit is just right, with no bunching or overheating, which is a big upgrade from regular cotton. The packaging was actually pretty cool, and the included merino hiking socks are a nice extra. My only hesitation is about the care instructions—it says to hand wash and lay flat, but I’m tempted to try the washer to see how it does. I liked my Smartwool sweater before because you could just toss it in the washer, but that was only 81% wool. Overall, I'm really happy with this one!
M**N
Super soft and cozy. Fits great
Adds a nice warm layer or nice to wear by itself. Bought for myself in a men’s small (5’5” 155lbs) and my husband men’s 2xl (6’ 255lbs) and they fit great. Super soft material. Buying in more colors
N**Y
So happy I purchased this base layer shirt.
My first merino clothing. I hike year round and was having sweating issues in the winter from the layers I wore. I have used this shirt 5 hikes now and no sweating. I’m very happy I got this shirt. I bought a Man’s because I am a Tall Woman. It’s nice and long to my Hips and the sleeve are a great length. I also like the red goes great with my winter jacket. Came with free socks. I tried them yesterday, they are comfortable but didn’t keep my feet warm. But no doubt they will be great when it’s not freezing cold. I will check to see if they have thicker ones for the winter as my other socks cause my feet to sweat in my hiking boots. These thinner socks kept my feet dry. I’m thankful for the free socks. I also bought another shirt in a lighter weight and that one is great as well. Also not itchy. I just ordered the pants which will arrive this week. I’m looking forward to trying them out on a freezing cold morning hike. I’ll do a review on the pants purchase after I wear them. I highly recommend merino, it’s made a huge difference on my winter hike. Wish I knew about this product before.
R**J
Top Quality, Excellent Addition of Quality Socks
The top is well made. I am glad to have a good quality warm under layer for winter. I used to buy silk, but decided to try wool this time. And the added socks are excellent. The included sock is thick but not too thick for shoes. My feet no longer get cold and damp when riding in a cold car before the heat comes on. I like them so much I came back and ordered more pairs of socks.
J**D
Quality Product at a Fair Price.
The shirt Feels great against my skin. This is the second Marino wool shirt that I have purchased and I want to say …. I am a super satisfied customer! I wear Marino wool socks and was looking to purchase another pair when I came upon this product. The shirt quality is excellent and the fit is spot on. I love this base layer shirt and as a bonus Marino tech sends a pair of Marino Wool socks that feel amazing, so now I am off to purchase yet another shirt from this company. Keep making quality products and I will be a customer for life.
K**R
Ottima qualita e comoda da indossare. Ne ho comprate altre con colori diversi
J**S
Fresca y cálida, suave y cómoda
S**A
¡¡¡Me encantó!!! Es mejor de lo que esperaba! Todo lo que se menciona es cierto: Se siente increíble, se ve genial, después de un día completo usándola, solo olía a nuevo!! Es perfecta!! Además, incluyeron un par de calcetines que también me encantan!!!... Actualización- Las otras dos playeras que pedí, llegaron sin calcetines y no los envían a México :(; Además la segunda playera que pedí, no parece tener la misma calidad, es más áspera y no parece tener las mismas propiedades
G**N
Once the temperature gets anywhere near 0°C (32°F), these merino wool tops (and bottoms) are the first thing I reach for under my regular clothes. They’re thin enough not to feel bulky, and they don’t make me overheat indoors. There are thicker options out there, but these hit the sweet spot: they take the edge off the cold outside while staying comfortable inside. Merino wool is in a different league compared to cotton or synthetics. It absorbs moisture, resists odour, regulates temperature, and insulates when it’s cold. Those properties also mean you don’t need to wash them constantly. A simple “air out” between wears is usually enough. They do require a bit of care — mine never go in the dryer. I wash them with other darks on a regular cycle, and after a couple of years they’ve held up extremely well. I bought three sets so I can rotate them: wear one, let it hang for two days, repeat, then wash everything on the sixth night. Hung to dry, they’re ready again by morning. They aren’t inexpensive, but for winter comfort, they’re absolutely worth it.
O**R
Muy cómoda y suave, se la ve de buena calidad solo con tocarla, ya veremos después de su uso a ver si resulta igual. De momento un 10.
Trustpilot
5 days ago
2 months ago