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🧗♂️ Elevate your base game—comfort, performance, and style in one sleek set!
The Merino.tech 100% Merino Wool Base Layer Men Set combines superfine 17.5 micron wool with advanced thermal regulation to deliver lightweight, breathable, and odor-resistant comfort. This midweight base layer set includes a fitted long sleeve top, long johns, and premium Merino wool hiking socks, making it ideal for year-round wear, outdoor adventures, and everyday use. Backed by a lifetime warranty and designed for easy care, it’s the ultimate upgrade from cotton for professionals who demand performance and style.

| ASIN | B09T6R7GXY |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | 5,142 in Fashion ( See Top 100 in Fashion ) 26 in Men's Thermal Sets |
| Brand Name | Merino.tech |
| Care instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Closure Type | Pull On |
| Colour | 165 Deep Blue |
| Customer Reviews | 4.6 out of 5 stars 3,528 Reviews |
| Fabric Type | 100% Wool |
| Fit Type | Regular |
| Fit to Size Sentiment | Fits True To Size |
| Garment Size Country | United States |
| Import Designation | Imported |
| Item Type Name | Base Layer Set |
| Manufacturer | Merino.tech |
| Manufacturer Part Number | MST-250 |
| Material Type | Wool |
| Material composition | 100% Wool |
| Model Number | MST-250 |
| Neck Style | Crew Neck |
| Number of Items | 1 |
| Occasion Type | hunting |
| Pattern | Solid |
| Product Care Instructions | Machine Wash (Delicate Cycle), Hand Wash Recommended |
| Season and Collection Year | All |
| Size | XL |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Modern/Fitted |
| Unit Count | 2.0 count |
| item-package-quantity | 1 |
P**R
Great set, warm, dry and comfy.
I have two of those in 250 and 320 grade and different shades of blue, so extremely happy to please my OCDs :D Really good fit - both in M fit me well with some room to spare, and I'm usually between S and M in common brands. Had them on on several hikes of various strain and length, and can't fault so far. Keeps me warm, dry and absorbs next to none of body or antiperspirant odour. Perfect buy for layering and honestly the top looks good on it's own if you really need to shed layers. So far they seem to be surviving washing without issues (wool liquids, wool mode, two spin cycles, dry flat on a towel on a rack) so fingers crossed for durability that it holds for a long while. In case you wonder, yes there is actually a weight difference between the grades :D If I recall right there was around 400g difference from 250 to 320 set when I weighted it. I might get one more set just in case for spares if it comes on a good discount :)
P**M
Feeling dry in wet - a high quality base layer
If you never tried merino base layer, you may not know what you are missing! The theory is that when wool is worn directly on the skin with cotton as the second layer, then the moisture migrates into the cotton layer straight through the wool making you feel dry and warm. It is a kind of feeling dry while wet effect. Merino wool is thin and gentle, does not bite, and stays odour-free for long. It is much thinner than usual sweaters and can be worn under a regular size shirt or jeans. This garment is true to size, and is stretchable horizontally, so it is likely to fit well. Its overall quality is quite good. I wore it during the recent blizzard, and it felt nice. The top looks good on its own and can be worn as the only layer for exercise, but they sell merino T-shirts for this. The fabric is not strong enough for wearing a backpack directly over it. It is a gentle fabric, so try to not stain it with eggs, fat, etc., because it can't tolerate strong detergents. Wool also dislikes bleach, high alkalinity substances, hot water (causes shrinking) and rubbing (causes felting). I usually minimise use of detergents, because wool is made of protein covered with fat (lanoline), and you may not want to de-grease that fat. So, just dip it in lukewarm water (25C), possibly with a small amount of wool detergent, or shampoo, or nothing, swish it a bit by hand, and then lay out flat to dry on a large towel. In a couple of hours hang it out, but not on a heater. It dries fast, quicker than cotton. Wool does not contain carbohydrates, like cellulose in cotton, which feed smelly bacteria. Healthy human sweat is composed of water-soluble compounds with added anti-bacterial substances, so washing wool is easy. I am using a merino T-shirt for in-doors exercise as well, but it is a different story.
D**G
Quality Merino Base layer
Excellent Merino Wool base layer for my husband. Planning a trip to the Northern Hemishere. 320mg weight. Fitted well. Non itchy merino. Felt comfortable and neck was a good lower height so didn't rub. Nice colour black. Great quality. Have bought some for myself the same.
A**R
Sizing is right on.
A heavy duty merino wool base layer set. Bought for a trip inside the arctic circle in January. Arrived on time. Sizing is right on. Can’t comment on durability yet. The free socks were a bonus, but delicate and already have a small hole. So far, I would buy again from the seller.
W**R
Merino tech
Bought 2 of these. Followed the sizing guide. They don’t seem true to size. . When put on you could feel the cold. As if the material was been overstretched and opening the fabric up to let the cold draughty air in. So Returned these. And went up a size. Then Bought large, the next size up and now they are super comfy and warm, really love them. And they look good, and hug the body nicely looking to buy another one if they come down in the January sales
A**B
These are great!!
I'm really impressed with the feel and quality of workmanship of this set. I have no reason to doubt that they are 100% Merino wool. They certainly feel like they are. The seams and stitching are excellent. I am always in-between sizes. I would say the sizing is easy fit not tight. so a large on me fits, but it is a bit looser than other sets I own. Go a size down if you prefer a "snugger" fit. 320g /M2 is what I purchased. They are warm to wear. But I wouldn't say exceptionally so. However, I am happy with them and they are likely to become my go-to set for really cold conditions. I would but more of any weight from this manufacturer.
C**C
Perfect quality base layers
This is second weight warmth and will be wonderful protection in the winter temperatures. These base layers retain body heat and are perfect. No more freezing in the winter. Allied with Merino socks and beanie I am well insulated and don’t need very heavy outer clothes. Will buy these base layers again.
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.
R**C
Rapport qualité prix imbattable
Article reçu dans les temps conforme à la description taille L pour 185m et 70kg impeccable j ai pris un 320g ,super chaud je le test actuellement à 1600m et fait très bien le job .Bon vendeur je conseille avec un très bon rapport qualité prix merci
P**O
Tenho cinco conjuntos
Melhor produto de merino pra segunda pele no mercado
S**L
Huge value here
I used the heaviest weight base layer for late season waterfowl hunting. In my opinion unless something is going to be an outer layer and in view of the animals you are hunting, the colour and Camo pattern do not matter. I was looking for some merino base layers at a reasonable price and these are great for the money. They wick sweat and stay warm even when wet. I can't speak to how they will hold up in the long term but for now they are great. I would recommend getting the zip up top as if you do end up getting too hot out there and start sweating its can really help you cool off faster. Overall a great value product that I would recommend for anyone who needs something to keep them warm and wick sweat away that won't break the bank.
M**I
Caldo e confortevole ma non troppo resistente
Dopo circa 5 utilizzi intensi si è formato un piccolo buco nei pantaloni e si sono formati piccoli grumi di fibre sulla superficie. A prescindere da questo l'intimo termico acquistato (250 g/sm) riesce a mantenere calore anche in giornate molto fredde. Ha retto giornate di sci con clima a -15° con sopra solo pile e guscio (giacca e sovrapantalone in gore-tex a 3 strati senza imbottitura). Comunque un ottimo prodotto qualità / prezzo.
M**H
Even a Sasquatch would like these
Bought this as gift for my skeptical Salt of the Earth Hubs who was not aware yet of the true superiority that is merino. His face dropped and I had to put his chin back into place when he asked How Much. I was utterly unfazed and ignored his protest. I easily got past his merino gear green inexperience and told him to ‘just try them because these will change your life’ with a grin. To put it short and sweet: He proceeded to basically only take them off to wash over the next five months. His only comment, actually Using His Words: he wanted another set. This, so he always had some clean and multiple weights so he could regulate better and choose depending on the weather forecast for the day he’d be out. I noticed his old synthetics were crumpled in the bottom of his gear bags when he’d come home. The merino were always within reach on top, and gasp, folded! High Praise from this man, folks. It should be stated he is THE case for the legitimacy of merino, and these extremely well priced merino sets: he is a heavy equipment operator that works outside on top of mountains in some of the most extreme winter environments on earth and loves it. For you, the reader’s purpose, let’s just agree to put aside the elephant-in-the-room Crazy Factor of that last sentence for now and stick to the underwear. All I can say in his defense is this world takes all types. That’s only important here to mention since he’s not a dude that sits around in it next to a cozy fire all winter sipping from a tea cup. (That’s my job, lol.) This set was put to a legit durability test and in incredibly harsh conditions and stood up. Once prompted for more detail, and translating out of his customary grunts, shrugs and sighs, he said [paraphrasing]: he stopped noticing whether or not his body was cold or hot since he was the perfect temperature all the time and stopped sweating whether in or out of a machine. He didn’t have to wear nearly as many layers in general. He didn’t have to strip ones off or put other ones on depending on where he was and what was happening nearly as much. He stayed warm even when outer gear got wet with frozen sleet driving and he had to move back and forth outside from truck to machine to truck. He wasn’t losing gear and other layers from job sites, trucks, machines or in the snow nearly as much either from stripping off and forgetting. The merino set remained odor free for an entire work cycle between washings so he reused them everyday. They stayed true to fit and didn’t stretch out of shape even wearing for long periods and for multiple days in a row. All day comfort second skin feel. No bunching in the armpits nor crotch. Ordered the 2XL, biggest they offer I think. He’s normally 3XL big and tall, so I wasn’t sure if these would fit but as a first or second layer snug is good. His back and shoulders can be a challenge to find proper fit for and I often tailor his clothes and gear, but these are perfect with long arms and a long torso design to accommodate various sizes and shapes. Spare to tuck in even! Fantastic!: This is important since he sometimes has to do mechanical repair on the fly. On top of a mountain on the machines, before this merino set, his lower back would sometimes come home chaffed and raw from cold exposure from these situations. A red burn from bending over with elements beating on him, not wanting to touch his clothes since his hands and outer gear coated with grease, tucking back is not a desirable option. The winds are basically trying to tear everything off so to have it stay in place and enough fabric to remain tucked in? chef kiss. Going into this next winter season depending on where he is going this year, we’ll get another set at a different weight. He said he wanted that versatility this time.
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