







🔥 Stay warm, fresh, and unstoppable — the ultimate merino wool base layer set! 🧥
Merino.tech Men’s Thermal Underwear Set features a midweight 250 g/m² superfine merino wool fabric that naturally regulates temperature, wicks moisture, and resists odor. This itch-free, breathable base layer includes a long-sleeve top, long johns, and a free pair of hiking socks ($21 value). Designed for year-round comfort and backed by a lifetime warranty, it’s perfect for active professionals seeking versatile, sustainable performance wear.




| ASIN | B09C4WYPYP |
| ASIN | B09KCFJZ33 |
| Apparel Closure Type | Pull On |
| Best Sellers Rank | #15,544 in Fashion ( See Top 100 in Fashion ) #21 in Men's Thermal Underwear Sets |
| Brand Name | Merino.tech |
| Collection Name | All |
| Color | 250 Black Set |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,085) |
| Customer reviews | 4.6 4.6 out of 5 stars (3,085) |
| Date First Available | 26 October 2021 |
| Department | mens |
| Fabric Type | Cotton |
| Fit Type | Slim |
| Item Type Name | Base Layer Set |
| Item model number | 735 |
| Manufacturer | Merino.tech |
| Material Type | Wool |
| Neck Style | Crew Neck |
| Pattern | Solid |
| Product Care Instructions | Wash on Delicate Cycle |
| Size | S |
| Sleeve Type | Long Sleeve |
| Style Name | Classic |
C**M
Excellent quality
Excellent quality and generous offer (comes with the leggings, top, and socks as a gift).
A**D
من أفضل المنتجات الصوفية، التي قمت باستخدامها تقي من البرد الشديد في أبرد الأوقات
S**N
I’m quite impressed with this! Very soft and I really like certain accents like the way that the cuffs on the pants and the sleeves taper down to retain some heat better but to fit well either way gloves/boots, to make sure it isn’t in your way, just draped very nicely. The fit is snug, but not tight or restricting at all, and the merino socks are very nice. I’d say overall this isn’t the softest merino wool I’ve ever felt, other luxury dress brand fabrics are softer, but not they aren’t trying to do what this is trying to do, I’m comparing fashion to this technical, earth focused, based layer. And I think it’s soft enough for continued use without any irritation. I cut all the tags off and have gone on two 1.5 hour winter hikes in Canada and have been super comfortable. So far no odour, been great, and I even am enjoying wearing then around the house. Great buy especially for the money!
M**A
I don’t usually write reviews, and have been mostly unimpressed with how it seems like Amazon is slowly transitioning to Alibaba i.e. many “companies” creating products of questionable quality HOWEVER This Merino base layer is P E R F E C T. Absolutely warm and comfortable. Great thickness and weight. Looks super good and smelled absolutely fresh using it three days in a row skiing. It’s expensive but worth it. Wish I could buy four more pairs. Really is an outstanding product. Hopefully it holds up over the years.
P**M
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.
M**N
Ich nutze das Merino Tech 320 g Set jetzt seit etwa einem Monat täglich für meine Abendläufe. Da es aktuell oft bis zu -6 Grad sind, war der Kauf absolut notwendig. Man merkt sofort, dass es sich um ein schwereres Material handelt, das sich aber extrem weich auf der Haut anfühlt. Nach dem Einlaufen spüre ich die Kälte überhaupt nicht mehr, man kommt sogar eher leicht ins Schwitzen. Mir war besonders wichtig, dass es sich um 100 % Merinowolle handelt und kein Polyester beigemischt wurde. Das zahlt sich aus: Selbst nach dem Sport riecht das Set völlig neutral und nimmt keinen Schweißgeruch an. Ein netter Bonus war, dass dem Paket noch ein Paar kostenlose Merinosocken als Geschenk beilagen. Einziger Minuspunkt: Trotz des hohen Preises treten im Schrittbereich durch die Reibung beim Laufen ziemlich viele Fusseln auf. Das hatte ich in dem Preissegment eigentlich nicht erwartet. Ansonsten ist es aber ein sehr hochwertiges, wenn auch teures Produkt, das sich für echte Winterläufer definitiv lohnt.
N**A
Loose and generally not what i expected but it is what it is
Trustpilot
2 days ago
3 weeks ago