Merino.tech Merino Wool Base Layer - Mens 100% Merino Wool Long Sleeve Thermal Shirts Heavyweight, Midweight, Lite with Socks
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Availability:
Only 4 left in stock, order soon!
Arrives
Tuesday, Mar 10
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Size: X-Large
Color: 165 Heathered Grey
Package Dimensions : 10 x 9 x 0.7 inches; 4.8 ounces
Item model number : Merino Long Sleeve 250
Department : mens
Date First Available : September 9, 2020
Best Sellers Rank: #4,239 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #3 in Men's Base Layers
#3 in Men's Base Layers:
Customer Reviews: 4.5 4.5 out of 5 stars 4,822 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Mar 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: X-Large
Color: 250 Windsor Blue
Very comfortable and light weight. Warm but not overly. Looks and fits good
Reviewed in the United States on October 29, 2025 by Adam Pasciak
Size: Medium
Color: 250 Windsor Blue
The long sleeve shirt is impressively warm for how lightweight it feels, making it ideal for layering without bulk. The fit is a bit loose on my 5'10", 180 lb frame, but still extremely comfortable. And the socks? Bonus points all day—they’re ridiculously comfortable, warm, and well-made. Pros: ✅ Deceptively Warm Shirt – Lightweight feel with heavyweight warmth ✅ Excellent for Layering – Perfect for work or motorcycle rides ✅ Top-Tier Socks – A standout part of the set ✅ Breathable & Soft Merino Wool – Regulates temperature well Cons: ❌ A Bit Loose – Could be more fitted, but still cozy Final Thoughts: This set is a must-have for cold weather, with a shockingly warm shirt and socks that steal the show. Ideal for working outdoors, winter riding, or daily layering.
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Reviewed in the United States on April 30, 2025 by Cyborgladiator
Size: Large
Color: 250 Deep Teal
I’m a 5’4”, size 14, XL size woman and I prefer to wear 30” tunic length tops. I couldn’t find women’s, merino base layer tunics, in that length for any price! I decided to try a men’s Large and after reading the reviews that stated these shirts are long and reading a review that said the sleeves ran a little short, I ordered this shirt. It is beautiful! It’s butter soft, well made, not scratchy and most importantly it fits! The shoulders and arms are roomy, not baggy. The arm length is a little long on me, as expected, but not too long. The torso length is perfect!!!! It falls just below my hips! It’s kind of snug in the hips, but that’s to be expected in a man’s size and I’m a woman with big hips. I can live with that. I will be ordering a half zip on the same size ASAP! If you’re a medium to large size woman, who prefers tunic length base layers, but can’t find one in women’s sizes, buy this shirt. It’s worth every penny! Well done!!!! Update: I put the sweater through a rinse cycle and reshaped the bottom part it to make it drape around my hips. That worked perfectly! I read a review that stated they thought the sweater had some percentage of spandex. I disagree, because, I would have been unable to reshape the sweater so easily if it contained anything like that. I just wanted to mention that. Thanks for an absolutely amazing piece of clothing!
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Reviewed in the United States on March 4, 2024 by Amazon Customer
I was a little surprised by how lightweight this item was - a little too lightweight to be classed as a thermal shirt - but it's everything I've come to expect from this brand: soft, warm, well made and durable. The color (pale coral) is very attractive - I suppose this is where I should mention that I am female - and quite versatile. Dark clothing will show through, so if I wear it with dark trousers, I have to tuck it in. Not a big deal, but I thought I ought to mention it all the same. I didn't wear it much last winter, but it became one of my 'first picks' this spring. Care: I wash all my woolens by machine (I have an impellor washer), in cool or warm water - not hot - and in a mesh bag. I use standard laundry detergent, no need for fabric softeners, and I line dry. Ironing or steaming isn't necessary, and they come out just fine. I first found this brand on Amazon, and then ordered a few pieces directly from the manufacturer. I wouldn't recommend this - they do a poor job of inventory tracking and sell products they don't have in stock. Amazon has no such issues, so I'm back to buying through Amazon again. This isn't meant to slam the manufacturer - they make a fine product, but order fulfillment just doesn't seem to be their strong suit. As for price, this piece is comparable to a lightweight wool or cashmere sweater - a bit more casual, but I use them in much the same way - and it costs less than my least expensive sweaters. So I would have to say it's a very good value for the money. I think I have four, maybe five, of these shirts, and I wouldn't keep coming back if I didn't think they were worth it.
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Reviewed in the United States on May 12, 2025 by 24karats
Size: XX-Large
Color: 165 Black
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.
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Reviewed in the United States on September 21, 2025 by JAMES WARD
Size: X-Large
Color: 250 Army Green
I love these underwear. I’ve been cold my whole life while doing the things I love to do. I tried a set of these, 250gm shirt and 320gm pants. I’ve never been more comfortable on stand. Walked in 500 yds uphill at 38F with a 20 lb pack. I got warm but I never felt sweaty. I stayed dry. I stayed warm. I’ve had merino wool socks in the past from a well known sock company and they disintegrated after wearing 3-4 times. Hoping these don’t do that, but I have a feeling already that these are more durable.
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Reviewed in the United States on October 30, 2025 by John C Mattern
Size: X-Large
Color: 165 Indigo Night
I was surprised at how warm it kept me, even though it seemed very lightweight. Had to go with a lighter one that I could sleep in at night, because even though it's much lighter than what I had been wearing, it was warmer. Fairly soft and smooth material.
Reviewed in the United States on October 25, 2025 by Michael P.
Size: X-Large
Color: 250 Windsor Blue
These are great budget base layers for cold weather. They’re soft and warm but lightweight and fit well under snow gear. I like the blue color of these and wish they had some more color options. They’ve so far lasted a few ski trips. I wash on delicate and hang dry to avoid shrinking / pilling.
Reviewed in the United States on August 21, 2025 by Emma