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🔥 Stay warm, fresh, and unstoppable all year long!
Merino.tech Men’s Thermal Underwear Set combines premium 250 g/m² superfine merino wool with a free pair of hiking socks, delivering breathable, odor-resistant, and itch-free comfort. Designed for versatile all-season wear, this slim-fit base layer offers natural temperature regulation and durability backed by a lifetime warranty—ideal for professionals who demand performance and style on and off the trail.

| ASIN | B09C4WYPYP |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | Low Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Best Sellers Rank | #4,415 in Fashion ( See Top 100 in Fashion ) #17 in Men's Thermal Underwear Sets |
| Brand Name | Merino.tech |
| Care instructions | Wash on Delicate Cycle |
| Collection Name | All |
| Color | 250 Black Set |
| Customer Reviews | 4.6 out of 5 stars 1,029 Reviews |
| Fabric Type | Cotton |
| Fit Type | Slim |
| Fit to Size Sentiment | True |
| Garment Size Country | United Arab Emirates |
| Item Type Name | Base Layer Set |
| Manufacturer | Merino.tech |
| Manufacturer Part Number | MST-250 |
| Material Type | Wool |
| Neck Style | Round Neck |
| Number of Items | 1 |
| Package Quantity | 1 |
| Pattern | Solid |
| Product Care Instructions | Wash on Delicate Cycle |
| Size | S |
| Sleeve Length Description | Long Sleeve |
| Sleeve Type | Long Sleeve |
| Style Name | Classic |
| Style Number | MST-250 |
| Unit Count | 3 Count |
M**Z
Not warm enough
Its quality and price don't match. The fabric feels very cheap when worn.
N**A
Not good not bad
Loose and generally not what i expected but it is what it is
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.
C**.
Buon prodotto soldi ben spesi.
Devo dire che volevo acquistare un set tecnico termico per lo snowboard Heavy wight, poi son cascato in questo che essendo in lana merino la sua versione medium avrebbe scaldato anche di più. Ho un cattivissimo rapporto con la lana poiché mi pizzica sempre un sacco, questa invece subito al tatto si è percepita di un trattamento incredibile da parte dell’azienda. All’inizio ha pizzicato leggermente dopo di che il corpo scarica e ci si abitua non so come funziona, ma anche sudando dentro non ha pizzicato nei giorni successivi. Quindi ottimo prodotto. Unica pecca il calzino è trattato meno quindi a me personalmente pizzica quindi lo uso con una calza da sotto più leggera.
A**R
My go-to long Johns
Excellent long Johns! These are cozy and warm. Snug and great fitting but breathable and moisture wicking. The merino wool is soft and not itchy. I think the mid weight is ideal for almost any outdoor activity as a base layer. Wear these hunting, hiking, skiing, ice fishing, under your waders, under snowmobile suit, under cover alls. If you live or work outdoors, these are for you. Well made. Great quality. Accurate sizing. Good value.
G**.
Caldo e confortevole, ottimo per freddo vero; attenzione alle taglie
Completo termico in lana merino pensato per tenere caldo: ottimo isolamento e buona gestione dell’umidità, ideale per inverno e attività all’aperto. Punti da controllare: vestibilità e taglia (meglio guardare bene la tabella), e lavaggio (seguire istruzioni per non infeltrire). Se la pelle è molto sensibile, la merino di solito è ok, ma può variare da persona a persona. In generale buon rapporto comfort/calore.
Trustpilot
2 weeks ago
2 months ago