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The MERIWOOL Mens Base Layer is a premium midweight thermal shirt crafted from 100% superfine 18.5-micron Merino wool at 250g/m². Designed for a fitted silhouette, it offers exceptional softness without itch, natural moisture-wicking, and odor resistance. Machine washable and dryer safe, this versatile crewneck keeps you warm in winter and cool in summer, making it the ideal base or mid-layer for outdoor enthusiasts and professionals alike.



| ASIN | B0CN9S44X7 |
| Best Sellers Rank | #13,250 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #11 in Men's Thermal Underwear Tops |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,356) |
| Date First Available | February 17, 2017 |
| Department | mens |
| Item model number | Crewneck |
| Manufacturer | MERIWOOL |
D**N
Great base layer
Top notch base layer. Super comfortable, soft and warm. I've worn mine for the past year-ish, and the quality is very good, washing it does not shrink it, color is still good and it fits me really well. I am 6'4", 235 lbs, 36" sleeve, and I bought XL big and tall. Recommended.
S**E
The perfect wool thin base layer - THAT'S WARM!
My husband is allergic to lots of fibers - he really only likes 100% cotton and wool and thankfully they don't irritate his skin. He LOVES this base layer - it's super warm, super SOFT, and very durable. I like how thin it is, while also providing a good warm layer. He immediately wanted to see if there was other colors offered. It was SO MUCH cheaper than some of the other online brands. Super happy with this purchase for him.
J**E
Warm as toast and softer than most
The cost of a wool base layer has kept me from buying one of these for a while, but man oh man I wish I had some wool underwear sooner! I bought the long sleeve midweight crew a couple of weeks ago and I have worn it just about every day since getting it. I'm no outdoorsmen, I just hate wearing a heavy coat and work in a drafty 100 year old building so I was looking for a way to stay warmer without having a million layers on while I was at work and to avoid putting on a coat just to run to the store. Ladies and gentlemen, we have a winner. Out of the box it fit fine. I usually wear an XL and so I ordered an XL. The fit around my body is snug like a baselayer should be but not constricting. The sleeves are plenty long. I have them pushed up to my elbows most of the time I'm indoors and they are not too tight. The length of the shirt length is a few inches below my waist and tucks in and stays tucked in. Layered with an overshirt or sweater I've been comfortable for two weeks; had to do some heavy lifting for a while some days and got a little sweaty, but the wool dried quickly and I didn't feel chilly afterwards. If you haven't caught on, I love this thing. As I mentioned, I have worn it almost every day since I got it. After the first 6 days (I took it off at night to air out and figured I'd be much too hot under a comforter with it on) I hand washed it with some wool detergent and to my pleasant surprise, it dried in less than 12 hours (for anyone who has hand-washed a sweater and left it on a towel to dry you know that this is a record time). I put it on the next day and it didn't shrink at all and got a bit softer. That was 6 days ago and I've worn it every day since. I am a convert. Stop wasting your time with polyester long johns!
S**O
Good product. Good value.
Great wool shirt for wearing up it as a pajama shirt around the house, assuming your house is in the 60s or low 70s. Also good as the top with jeans. Much softer than the smart wool products. We will see how durability is.
W**S
Good buy!
Nice and warm!
C**S
Med. weight wool shirt
Nice base layer. Medium weight, breathes well and is fitted, no cling, color is what was expected. I was looking for a base layer and it fits the bill there, but didn’t want a snug and fitted look. I’m not getting away with wearing this as a basic long t-shirt like I wanted until I lose a few lbs. have to see if they offer anything in a relaxed fit.
W**W
Nice shirt
Nice shirt, good weight, comfy. It seems a little large, being wool it might shrink a little. Not sure but so far so good.
K**N
Great product
Excellent winter shirt. Always seems to be the right temp. Much more breathable than cotton. I can wear it during the day and overnight with no issues. Highly recommended
J**A
Pensé que era costoso pero es muy buena calidad y no pica como pensaba
B**R
Into my 2nd year wearing this, great 👍
P**A
Soft and fitting.
W**K
this is well made and beautifully packaged. Fits well. Lovely wool. Highly recommended.
C**A
Es un buen producto que cumple con lo que dice en la etiqueta. Una primera compra enviaron la talla equivocada pero sin problemas para devolución. Veo que les ha pasado a otros así que podrían pone rmas cuidado que su precio lo merece.
Trustpilot
2 months ago
2 weeks ago